Arizona Agave (Agave Arizonica) Arizona Rliffrose (Purshia Subintezra) Arizona Hedgehog (Echinocereus Triglochidiatus Var

FISH.% WM-MIFF SERVICE

FEDERALLY LISTED THREATENED AND ENDANGERED SPECIES OF ARIZONA (July 1994)

PLANTS (15 listed, 2 proposed, 2 petitioned) Arizona agave (Agave arizonica) Arizona rliffrose (Purshia subintezra) Arizona hedgehog (Echinocereus triglochidiatus var. arizonicus) Brady pincushion cactus (Pediocactus bradyi) Corhise pincushion cactus (_Coryphantha robbinsonim) Jones' cycladenia (Cycla.denia humilis var. jonesii) Kearney blue star (Amsonia kearneyana) Navajo sedge (Carex specuicola) Nichol Turk's head cactus (Echinocactus horizonthalonius var. nicholii) Peebles Navajo cactus (Pediocactus peeblesianus var. peeblesianus) San Francisco Peaks groundsel (Senecio franciscanus) Sentry milk vetch (Astragalus cremnophylax var. cremnophvlax) Slier pincushion cactus (Pediocactus sileri) Welsh's milkweed (Asclepias welshii) Pima pineapple cactus (Corvphantha scheeri var. robustispina)

Proposed endangered: Arizona willow (Salix arizonica) Parish alkali grass (Puccinellia parishii) Petitioned: Canelo Hills ladies'-tressess (Spiranthes delitescens) Petitioned: Iluachuca water umbel (Lilaeopsis schaffneriana ssp. recurva)

EMU (18 listed species, 1 proposed) Apache trout (Oncorhynchus apache) Beautiful shiner (Notropis formosus) Bonytail chub (Gila elegans) Colorado squawfish (Ptychocheilus lucius) Desert pupfish (Cyprinodon macularius) Gila topminnow (Poeciliopsis occidentalis occidentalis) Gila trout (Oncorhynchus gilae) Humpback chub (Gila cypha) Little Colorado spinedace (Lepidomeda vittata) Loath. minnow (Tiaroga cobitis) Razorback sucker (Xyrauchen texanus) Sonora chub CGila ditaenia) Spficedace (Meda fulgida) Virgin River chub (Gila robusta seminuda) Woundfin (Plagopterus argentissimus) Yaqui catfish (Ictalurus pricei) Yaqui. chub (Gila purpurea) Yaqui topminnow (13 eciliopsis occidentalis sonoriensis)

Proposed threatened: Virgin spinedace (Lepidomeda mollispinis 2

LISTED SPECIES continued

BIRDS (10 listed, 1 proposed, 1 petitioned) American peregrine falcon (Falco peregrinus anatum) Bald eagle (Haliaeetus leucocephalus) Masked bobwhite (Colinus virginianus ridgewayi) Northern aplomado falcon (Falco femoralis septentrionalis) Mexican Spotted owl (Stix occidentalis lucida) Whooping crane (Grus americana) Yuma clapper rail (Rallus longirostris yumanensis) Arctic peregrine falcon (Falco peregrinus tundrius) Brown pelican (Pelecanus occidentalis) CaJifornia condor (Gymnogyps californianus)

Proposed endangered: Southwestern willow flycatcher (Empidonax traillii extimus) Petitioned: Cactus ferruginous pygmy-owl (Glaucidium brasilianum cactorum)

MAMMATS (8 listed species, 1 proposed) Black-footed ferret (Mustela nigripes) Hualapai Mexican vole (Microtus mexicanus hualpaiensis) Mexican gray wolf (Canis lupus baileyi) Mount Graham red squirrel (Tamiasciurus hudsonicus grahamensis) Lesser long-nosed bat (Leptonycteris curasoae yerbabuenae) Sonoran pronghorn antelope (Antilocapra americana sonoriensis) Jaguarundi (Fells yagouaroundi tolteca) Ocelot (Felis pardalis)

Proposed endangered: Jaguar, U.S. population (Fells onca)

REPTILES/AMPHIBIANS (2 listed, 1 proposed, 1 petitioned) Desert tortoise, Mohave desert population [Gopherus (=Xerobates) agassizii] New Mexico ridge-nosed rattlesnake (Crotalus willardi obscurus)

Proposed threatened: Flat-tailed horned lizard (Phrynosoma mcallii) Petitioned: Sonoran tiger salamander (Ambystoma tigrinum stebbinsi)

INVERTEBRATES (1 listed species, 1 proposed) Kanab ambersnail (Oxyloma haydeni kanabensis)

Proposed endangered: San Xavier talussnail (Sonorella eremita)

54 LISTED SPECIES TOTAL, 7 PROPOSED, 4 PETITIONED U.& FISH 41. WILDLIFE: SERVICE

FEDERAL CANDIDATE SPECIES OF ARIZONA (September 1994)

CANDIDATE CATEGORY 1

Plants: Acuna cactus (Echinomastus erectocentrus var. acunensis) Arizona bugbane (Cimicifuga arizonica) Arizona leatherflower (Clematis hirsutissima var. arizonica) Blumer's dock (Rumex orthoneurus) Catalina beardtongue (Penstemon discolor) Fickeisen plains cactus (Pediocactus peeblesianus var. fickeiseniae) Gentry indigo bush (Dalea tentaculoides) Goodding onion (Allium gooddingii) Huachuca groundsel (Senecio huachucanus) 'Huachuca water umbel (Lilaeopsis schaffneriana ssp. recurva) Kaibab Plains cactus (Pediocactus paradinei) Lemmon fleabane (Erigeron lemmonii) Madrean ladies' tresses (Spiranthes de7itescens) Paradox milk vetch (Astragalus holmgreniorum) Santa Cruz Beehive cactus (Cmphantha recurvata)

Invertebrates; Page Spring micro caddisfly (Metrichia volada) Page springsnail (Pyrgulopsis morrisoni) Huachuca springsnail (Pyrgulopsis thompsom) Wet Canyon talussnail (Sonorella macrophallus)

Fish: None

Reptiles Amphibians: Sonoran tiger salamander (Ambystoma tigrinwn stebbinsi) Tarahumara frog (Rana tarahumarae) Chiricahua leopard frog (Rana chiricahuensis) Ramsey Canyon leopard frog (Rana subaquavocalis)

Cactus ferruginous pygmy-owl (Glaucidiwn brasilianum cactorum) California black rail (Laterallus jamaicensis coturniculus)

Mammals: None • CANDIDATE CATEGORY 2

Plants: Pima Indian-mallow (Abutilon parishii) Hohokam agave (Agave murpheyi) Santa Cruz striped agave (Agave parvillOra ssp. parviflora) Trelease agave (Agave schotti var. treleasii) Tonto Basin agave (Agave delamaten) Saiya (Amoreuxia gonzalezi() Large-flowered blue star (Ansonia grandiflora) Yellow-flowered desert poppy (Arctomecon californica) Roaring Spring prickly poppy (Argemone arizonica) Gumbo milk vetch (Astragalus ampullarius) Copper Mine milk vetch (Astragalus cobrensis var. maguirei) Cliff milk vetch (Astragalus cremnophylax var. myriorraphis) Beaver Dam milk vetch (Astragalus geyeri var. triquetrus) Huachuca milk vetch (Astragalus hypoxylus) Freckled milk vetch (Astragalus lentiginosus var. anzbiguus) Sheep range milk vetch (Astragalus musimonzan) Nutrioso milk vetch (Astragalus nutriosensis) Gladiator milk vetch (Astragalus xiphoides) Crenulate moonwort (Botrychium crenulatum) Browallia eludens Camissonia confertzflora Slender primrose (Camissonia exilis) Gould primrose (Camissonia gouldiz) Ditch evening primrose (Camissonia specuicola ssp. hesperia) White Mountains paintbrush (Castilleja mogollonica) Dune spurge (Chamaesyce plcuysperma) Santa Cruz star leaf (Choisya mollis) Tusayan rabbitbrush (azysothartazus molestus) Mogollon thistle (Cirsium panyi ssp. mogollonicum) Virgin thistle (Cirsitan virginensis) Playa spider flower (Cleome multicaulis) Mexican hemlock parsely (Conioselinum mexicanum) Coursetia glabella Cryptantiza cinerea var. arenicola Warner's dodder (Cuscuta warren) Cameron water-parsley (Cymopteris megacephalus) Cynanchum wigginsii Standley Whidow-grass (Draba standleyi) Needle-spined pineapple cactus (Echinomastus erectocentrus var. erectocentrus) Mogollon fleabane (Erigeron anchana)

2 Pinalenos fleabane (Erigeron heliographis) Chiricahua fleabane (Erigeron kuschei) Fish Creek fleabane (Erigeron piscaticus) Apache wild buckwheat (Eriogonum apachense) San Carlos wild buckwheat (Eriogonum capillare) Morton wild buckwheat (Eriogonum mortonianum) Ripley wild buckwheat (Eriogonwn ripleyi) Atwood wild buckwheat (Eriogonwn thompsonae var. atwoodii) Woodland spurge (Euphorbia plummerae) Gentianella wislizeni Bartram's stonecrop (Graptopetalum bartramii) Dune sunflower (Helianthus niveus ssp. tephrodes) Huachuca golden-aster (Heterotheca rutten) Texas purple spike (Hexalectris warnocidi) Pringle hawkweed (Hieracium pringlei) Kaibab bladderpod (Lesquerella kaibabensis) Lemon lily (Lilium panyi) Chiricahua mudwort (Limosella pubtflora) Lemon globe berry (Margaranthus lernmonii) Lemmon cloak fern (Notholaena lemmonii) Giant Spanish needles (Palafoxia gigantea var. atwoodiz) Pectis imberbis Paper-spined cactus (Pediocactus papyracantlms) Beaver Dam breadroot (Pediomelum castoreum) Kane breadroot (Pediomelum epipsilum) Three-nerved scurf-pea (Pediomelum trinervatum) White margined penstemon (Penstemon albomarginatus) Cerbat beardtongue (Penstemon bicolor ssp. roseus) Sunset Crater beardtongue (Penstemon clutei) Mt. Trumbull beardtongue (Penstemon distans) Fish Creek rock daisy (Perizyle saxicola) Cinder phacelia (Phacelia serrata) Welsh phacelia (Phacelia welshiz) Plzaseolus supinus Sand food (Pholisnza sonorae) Hinckley's Jacob's ladder (Polemonium pauciflorum ssp. hinckley() North Rim primrose (Primula hunnewelliz) Whiting indigo bush (Psorothamnus thompsonae var. whitingii) Grand Canyon rose (Rosa stellata ssp. abyssa) Aravaipa sage (Salvia amissa) Verde Valley sage (Salvia dorrii ssp. mearnsii) Gila groundsel (Senecio quaerens) Grand Canyon catchfly s(Silene rectiramea) Lemmon jewelflower (Streptanthus lemmonii) Pinos Altos flame flower (Talinum humile) Tepic flame flower (Tallman marginantrn) Tusayan flame flower (Talinum validulum) White Mountains clover (Tnfolium longipes var. neurophyllum) Limestone Arizona rosewood (Vauquelinia californica sšp. pauciflora)

Invertebrates: Arizona cave amphipod (Stygobromus arizonensis) Grand Canyon cave psuedoscorpion (Archeolarca cavicola) False ameletus mayfly (Ameletus falsus) Sabino Canyon damselfly (Argia sp.) Arizona giant sand treader cricket (Daihinibaenetes arizonensis) Pinaleno monkey grasshopper (Eumorsea pinaleno) Navajo Jerusalem cricket (Stenopelmatus navajo) Santa Rita Mountains chlorochroan bug (Chlorochroa rita) Cheese-weed owlfly (Oliarces clara) Maricopa tiger beetle (Cicindela oregona maricopa) Parker's riffle beetle (Cylloepus parken) Chiricahua water scavenger beetle (C)Imbiodyta arizonica) Stephan's riffle beetle (Heterelmis stephani) Matron's San Carlos riffle beetle (HuleechiuS marroni carolus) Arizona water penny beetle (Psephenus arizonensis) White Mountains water penny beetle (Psephenus montanus) MacNeill sooty wing skipper (Hesperopsis gracielae) Blue silverspot butterfly (Speyeria nokomis caerulescens) Balmorhea saddle-case caddisfly (Protoptila balmorhea) California floater (Anodonta cahforniensis) Bylas springsnail (Apachecoccus arizonae) Three Forks springsnail (Fontelicella trivialis) Grand Wash springsnail (Pyrgulopsis bacchus) Kingman springsnail (Pyrgulopsis conicus) Verde rim springsnail (Pyrgulopsis glandulosus) Montezuma Well springsnail (Pyrgulopsis montezumensis) Fossil springsnail (Pyrgulopsis simplex) Brown springsnail (Pyrgulopsis solus) San Bernardino springsnail (Yaquicoccus benzardinus) Gila tryonia snail (Tryonia gilae) Quitobaquito tryonia (Tryonia quitobaquitae) Squaw Park talussnail (Sonorella allynanithi) Clark Peak talussnail (Sonorella christensem) Pinaleno talussnail (Sonorella graharnensis) Ladybug Saddle talussnail (Sonorella sp.) Fish: Longfin dace (Agosia chrysogaster) Mexican stoneroller (Campostoma ornatum) Little Colorado sucker (Catostomus sp.) Desert sucker Catostomus 1Pantosteusl clarla) Zuni Mountain sucker (Catostomus discobolus yarrow') Sonora sucker (Catostomus insignis) Flannelmouth sucker (lower Colorado River basin population)(Catostomus latipinnis) Gila chub (Gila intermedia) Roundtail chub (Gila robusta) Speckled dace (Rhinichthys osculus) Gila & Bill Williams Basins populations

Reptiles Amphibians: Canyon (giant) spotted whiptail (Cnemidophorus bum) Arizona skink (Eumeces gilberti arizonensis) Desert tortoise (Sonoran population) (Gopherus agassizii) Chuckwalla (Sauronzalus obesus) Rosy boa (Lichanura trivirgata) Texas horned 1i7ard (Phrynosoma comutum) Mexican garter snake (Thamnophis eques) Narrow-headed garter snake (Thamnophis rufipunctatus) Cowles fringe-toed lizard (Uma notata rufopunctata) Arizona toad (Bufo microscaphus icroscaphus) Lowland leopard frog (Rana yavapaiensis)

Birds: Northern goshawk (Accipiter genzilis) Apache northern goshawk (Accipiter gentilis apache) Baird's sparrow (Ammodramus bairdii) Northern gray hawk (Buteo nitidus maximus) Ferruginous hawk (Bute° regalis) Western snowy plover (Clzaradrius alexandrinus nivosus) Mountain plover (Chczradrius montanus) Fulvous whistling duck (SW US pop.) (Dendrocygna bicolor) (Northern) Buff-breasted flycatcher (Empidonax fidvifrons pygmaeus) Western least bittern (Ixoblychus exilis hesperis) Loggerhead shrike (Lanius ludovicianus) Large-billed savannah sparrow (Passerculus sandwichensis rostratus) White-faced ibis (Great Basin population) (Plegadis chihz)

5 Mammals: Mexican long-tongued bat (Choeronycteris mexicana) Arizona black-tailed prairie dog (C5momys lucLovicianus arizonensis) Marble Canyon kangaroo rat (Dipodomys microps leucotis) Spotted bat (Euderma maculatum) • Greater western mastiff-bat (Eumops perotis califonzicus) Underwood's mastiff bat (Eumops undenvoodz) Yuma puma (Fells concolor browni) Southwestern otter (Lutra canadensis sonorae) California leaf-nosed bat (Macrotus californicus) Navaho Mountain Mexican vole (Microtus mexicanus navaho) Occult little brown bat (Myotis lucifugus occultus) Southwestern cave myotis (Myotis velifer brevis) Santa Catalina Mountains woodrat (Neotoma mexicana bullata) Coconino Arizona pocket mouse (Perognathus amplus ammodytes) Yavapai Arizona pocket mouse (Perognathus amplus amplus) Wupatki Arizona pocket mouse (Perognathus amplus cine- ris) Silky pocket mouse (Perognathus flavus goodpasten) Black Mountain pocket mouse (Peromyscus interme,dius nigromontis) Pinacate cactus mouse (Peromyscus eremicus papagensis) Black Mountain cactus mouse (Peromyscus eremicus pullus) Chiricahua western harvest mouse (Reithrodontomys megalotis arizonensis) Chiricahua Nayarit squirrel (Sciun-4s nayaritensis chiricahuae) Yuma hispid cotton rat (Sigmodon hispidus eremicus) Yavapai Arizona cotton rat (Sigmodon arizonae jacksoru) Yellow-nosed cotton rat (Sigmodon ochrognathus) Santa Catalina Mountains squirrel (Sciurus arizonensis catalinae) Arizona shrew (Sorex arizonae) Itualapai southern pocket gopher (Thomomys umbrinus hualpaiens. is) Prospect Valley pocket gopher (Thomomys umbrinus muralis) Pajarito southern pocket gopher (Thomomys umbrinus quercinus) Searchlight southern pocket gopher (Thomomys wnbrinus suboles) HarquAhaln southern pocket gopher (Thomomys umbrinus subsimilis) New Mexican jumping mouse (Zapus hudsonius luteus) LISTING PRIORITY NUMBER ASSIGNMENT FORM Date: January 19, 1994 Scientific name: Rhinichthvs osculus Common name: Speckled dace - Gila and Bill Williams basins population Group and family for animals, family for plants: Fishes - Oyprinidae Previously published category assignment: 1 2 3A 33 3C none

Recommended new category assignment: 1 2 3A 33 3C •■■•

Briefly summarize biological information (habitat, range, population estimates, etc.): Historic range: AZ, NH, Sonora, MX. The taxonomy of Rhinichthvs osculus is in flux. The species extends from the Columbia River basin to the Gila River basin. For many years there have been ongoing taxonomic discussions regarding the partitioning of the species into numerous subspecies or species. Because of the deteriorating status of the Gila and Bill Williams forms of the speckled dace complex we are placing this subunit of the complex into category 2 as a population, pending further taxonomic clarification. The speckled dace is a small minnow which inhabits a wide variety of flowing water habitats. In the Gila and Bill Williams basins population, they primarily inhabit fast-flowing, shallow waters with hard substrates.

Briefly summarize presently known status/threats in terms of the five factors of section 4 of the Act. (/f this is a revision to a previous classification, describe reasons for changing the category and/or listing priority number): A. The present or threatened destruction, modification, or curtailment of its habitat or range: The Gila and Bill Williams basin population of speckled dace has been reduced in numbers and distribution within its historic range by dewatering, diversion, dam construction, channel and watershed erosion, and other factors. Additional water development and ongoing watershed damage threaten large portions of the remaining areas of the range. B. Overutilization for commercial, recreational, scientific, or educational purposes: None known C. Disease or predation: Historic and ongoing introduction and spread of nonnative fish is a serious threat to this species through predation and competition. Exotic diseases and parasites introduced along with nonnative fish are also a threat. D. The inadequacy of existing regulatory mechanisms: Existing regulatory mechanisms are allowing the continuing decline of this species. E. Other natural or manmade factors affecting its continued existence:

Other pertinent information (land ownership, prelisting activities, etc.): Land ownership includes several Federal agencies, States, Indian reservations, and private lands. Prelisting activities include many ongoing efforts by the FWS and other State and Federal agencies and private organizations to protect river flows and aquatic habitats.

Give citations for primary sources of information (i.e. status reports, petition, journal publication, unpublished data from species experts): The Desert Fishes Recovery Team (species experts) has discussed the status of this species and based on personal knowledge and published and unpublished data has recommended that this species be placed into category 2 due to historic and ongoing declines and future threats.

ADDITION' RHOS 2

PRIORITY

Listing priority (Category 1 only): Estimated urgency of conducting a status surve (Cate ory 2 only): Threat Taxonomy Prior- Magnitude Immediacy ity

• :ti .- . %. , Imminent Monotypic 1 .* . • • - .-. genus Species 2 Subspecies 3 --:: Monotypic 4 =:-.-. .. ..-. . genus Species _

Moderate Imminent Monotypic to low genus Species 8 Subspecies 9 Non-imminent Monotypic 10 genus Species 11 Subspecies 12

STATUS TREND Improving Stable Declining Possibly Extinct Unknown Not Applicable

PETITION STATUS

If under petition, last finding: Negative 90-day Positive 90-day Not warranted Warranted but precluded

Date published in FR: NA

Date petition received: NA

Regional contact (include phone number): Sally Stefferud (602-379-4720) Lead Field Office: Arizona Ecological Services Field Office

Coordination accomplished (other Regional Offices, other FWS programs, Government agencies): New Mexico Ecological Services Office, Salt Lake City Ecological Services Office (Region 6), Arizona Game and Fish Department, New Mexico Department of Game and Fish

APPROVAL/CONCURRENCE: The Regional Director must approve all changes to the candidate lists and changes in Category 1 listing priority. A copy of the approved form must be forwarded to the Washington Division of Endangered Species for data tracking purposes. The director must concur on all ad itions to Category 1. Approve: c I nal Directo r. 5111eD 4

ADDITION RHOS

Concur: .rector, is an W e Service Date

Do not concur: Director, Fish and Wildlife Service Date

Director's Remarks:

! ADDITION RHOS LISTING PRIORITY NUMBER ASSIGNMENT FORM

Date: January 19, 1994

Scientific name: Aaosia chrvsoaaster Common name: Longfin dace

Group and family for animals, family for plants: Fishes - Cyprinidae Previously published category assignment: 1 2 3A 38 3C none

Recommended new category assignment: 1 2 3A 38 3C ■■■•• Briefly summarize biological information (habitat, range, population estimates, etc.): Historic range: AZ, NM, Chihuahua, Sinaloa, and Sonora, MX. Native to the Gila, Bill Williams Rivers, the Willcox Playa basin, and the Rios Sonoyta, de la Concepcion, Sonora, Matape, Yaqui, Maya Fuerte, and Sinaloa. The form in the Gila and Bill Williams Rivers, Willcox Playa basin, and Rios Sonoyta and de la Concepcion may be distinctive. Longfin dace have Also been introduced into the Virgin, Hualapal, Zuni, Mimbres, and Rio Grande watersheds. It has become established in the Mimbres River and is no longer in the Zuni watershed. The status of the other introductions in not known. Longfin dace are small minnows which inhabit shallow runs and pools over sand and gravel substrates.

Briefly summarize presently known status/threats in terms of the five factors of section 4 of the Act. (If this is a revision to a previous classification, describe reasons for changing the category and/or listing priority number):

A. The °resent or threatened destruction, modification, or curtailment of its habitat or range: The status of longfin dace is the least deteriorated of all of the Gila basin native fishes. However, large areas of habitat for this species have been destroyed by dewatering, diversion, groundwater pumping, dam construction, channel and watershed erosion, and other factors. Additional water development and ongoing watershed damage I threaten large portions of the remaining range.

B. Overutilization for commercial, recreational, scientific, or educational purposes: None known.

C. Disease or predation: Historic and ongoing introduction and spread of nonnative fish is a serious threat to this species through predation, competition, and habitat alteration. Exotic diseases and parasites introduced along with the nonnative fish are also a threat.

D. The inadequacy of existing regulatory mechanisms: Existing regulatory mechanisms are allowing the continuing decline of this species.

E. Other natural or manmade factors affecting its continued existence:

Other pertinent information (land ownership, prelisting activities, etc.): Land ownership includes several Federal agencies, States, Indian reservations, and private and corporate entities. Prelisting activities include many ongoing efforts by the EWS, and other State and Federal agencies and private organizations to protect river flows and aquatic habitats.

Give citations for primary sources of information (i.e. status reports, petition, 'journal publication, unpublished data from species experts): The Desert Fishes Recovery Team (species experts) has discussed the status of this species and based on personal knowledge and published and unpublished data has recommended that this species be placed into category 2 due to historic and ongoing declines and future threats.

NEW SPECIES1 AGCH 2

PRIORITY Listing priority (Category 1 only): Estimated urgency of conducting a status surve (Cate ory 2 only): Threat TaxOnomy :Prior-, Magnitude Immediacy 3.-ty High Imminent Monotypic 1 genus Species 2 Subspecies 3 Non-imminent Monotypic 4 genus Species 5 Subspeciei 6 444A; " - Imminent Monotypic 7 genus Species 8 Subspecies 9

: Species 11 Subspecies 12

STATUS TREND

Improving Stable Declining Possibly Extinct Unknown Not Applicable

PETITION STATUS

If under petition, last finding: Negative 90-day Positive 90-day Not warranted Warranted but precluded

Date published in FR: WA

Date petition received: MA

Regional contact (include phone number): Sally Stefferud (602/379-4720) Lead Field Office: Arizona Ecological Services Office Coordination accomplished (other Regional Offices, other FWS programs, Government agencies): New Mexico Ecological Services Office, Salt Lake City Ecological Services Office (Region 6), Arizona Game and Fish Department, New Mexico Department of Game and Fish APPROVAL/CONCURRENCE: The Regional Director must approve all changes to the candidate lists and changes in Category 1 listing priority. A copy of the approved form must be forwarded to the Washington Division of Endangered Species for data tracking purposes. The director must con ur on all a .itions to Category 1.

Approve: ional Direct h and Wildlife Service ATE

NEW SPECIES AGCH •

Concur: Director, Fish and Wildlife Service Date

Do not concur: Director, Fish and Wildlife Service Date

Director's Remarks:

NEW SPECIES' AGCE LISTING PRIORITY NUMBER ASSIGNMENT FORM

Date: January 19, 19

Scientific name: Catostomus latipinnis Common name: Flannelmouth sucker (lower Colorado River basin population) Group and family for animals, family for plants: Fishes - Cyprinidae

Previously published category assignment: 1 2 3A 33 3C none ..1■1•M Recommended new category assignment: 1 2 3A 33 3C The flannelmouth sucker was added to the candidate list, as a category 2 in 1991. Th addition was made due to a recommendation by the Arizona Ecological Services Office (AESO) to place the lower Colorado River basin population of the flannelmouth sucker category 2. The AESO recommendation was based on the recommendation of the Desert Fishes Recovery Team and was supported by the Arizona Game and Fish Department and Regions 1 and 6. At least twice during the Notice of Review (NOR) draft review proce the AESO sent comments pointing out that the NOR entry erroneously included the entir species. Despite these comments, the November 1991 NOR listed the entire species as category 2. At the request of Region 6, we are again requesting that the entry be corrected to list only the lower Colorado River basin population of the flannelmouth sucker as category 2. Region 6 does not believe category 2 status is appropriate for the. upper basin population. The differences in status, habitat, and threats between upper and lower basin populations qualify them for separate consideration.

Briefly summarize biological information (habitat, range, population estimates, etc. Historic range: AZ,CA,NV,DT. The flannelmouth sucker was historically found throughout the Colorado River basin. Although it is still thriving in the upper Colorado River basin, populations in the lower basin (below Glen Canyon Dam) have suffered severe declines. Only two populations are known to remain in the lower bas the Virgin River, and the Colorado River in the Grand Canyon including the lower Lit: Colorado River. A sucker species found in the remainder of the Little Colorado RiveL is an undescribed species, currently being placed into category 2.

Briefly summarize presently known status/threats In terms of the five factors of section 4 of the Act. (If this is a revision to a previous classification, describe reasons for changing the category and/or listing priority number):

A. The present or threatened destruction, modification, or curtailment of its habit or ranoe: The flannelmouth sucker in the lower Colorado River basin has been extirpated from the majority of its historic range by dewatering, diversion, groundwater pumping, dam construction, channel and watershed erosion, and other factors. Additional water development, hydropower, and ongoing watershed damage continue to threaten the survival of the two remaining populations.

B. Overutilization for commercial, recreational, scientific, or educational purpose None known.

NAME CORRECTIC RANGE CORRECT: CALA D. The inadeguacy of existing regulatory mechanisms: Existing regulatory mechanisms are allowing the continuing decline of this species. E. Other natural or manmade factors affecting its conTinued existence: The reimaining populations of the lower Colorado basin flannelmouth sucker are isolated from each other. This fragmentation makes the species vulnerable to threats from habitat loss and nonnative fish introduction.

Other pertinent Information (land ownership, prelisting activities, etc.): Land ownership includes Federal and State agencies, Indian Reservations, and private and corporate entities. Prelisting activities include the ongoing efforts to protect and recover the fishes of the Virgin River and the Glen Canyon Dam Environmental Studies work in the Colorado River and associated tributaries.

Give citations for primary sources of information (i.e. status reports, petition, journal publication, unpublished data from species experts): In 1989, the Desert Fishes Recovery Team (species experts) recommended the flannelmouth sucker in the lower Colorado River basin be placed in category 2 due to historic and ongoing declines and future threats. That recommendation was based on personal knowledge and published and unpublished data.

PRIORITY Listing priority (Category 1 only): Estimated urgency of conducting a status survey (Category 2 only): , Threat Taxonomy Prior- Magnitude Immediacy ity Medium , Monotypic 1 Low genus Species . 2

Non-imminent Monotypic genus Species 5 Subspecies 6 Moderate Imminent Monotypic 7 to low genus Species 8 Subspecies 9 Non-imminent Monotypic 10 genus Species 11 Subspecies 12

NAME CORRECTION RANGE CORRECTION CALA

STATUS TREND Improving Stable Declining Possibly Extinct Unknown Not Applicable

PETITION STATUS If under petition, last finding: Negative 90-day Positive 90-day Not warranted Warranted but precluded Date published in FR: NA Date petition received: NA

APPROVAL/CONCURRENCE: The Regional Director must approve all changes to the candidat lists and changes in Category 1 listing priority. A copy of the approved form must h forwarded to the Washington Division of Endangered Species for data tracking purposes The director must concur on all additions to Category 1.

Approve: (. J L(k nal Direct° and Wildlife Service Date

Concur: Director, Fish and Wildlife Service Date

Do not concur: Director, Fish and Wildlife Service Date

Director's Remarks:

NAME CORRECTIO. RANGE CORRECT: CALA LISTING PRIORITY NUMBER ASSIGNMENT FORM

Date: January 19, 1994 Scientific name: Catostomus sp. Common name: . Little Colorado sucker

Group and family for animals, family for plants: Fishes - Catostomidae

Previously published category assignment: 1 2 3A 3B 3C none ••••••■••■••■ Recommended new category assignment: 1 2 3A 33 3C Briefly summarize biological information (habitat, range, population estimates, etc.): Historic range: AZ. Endemic to the basin of the Little Colorado River. The Little Colorado sucker inhabits flowing pools and feeds in riffle areas. Briefly summarize presently known status/threats in terms of the five factors of section 4 of the Act. (If this is a revision to a previous classification, describe reasons for changing the category and/or listing priority number):

A. The present or threatened destruction, modification, or curtailment of its habita7 or range: The Little Colorado sucker has been reduced in numbers and distribution in substantial portion of its historic range by dewatering, diversion, dam construction, channel and watershed erosion, and other factors. Additional water development and ongoing watershed damage threat large portions of the remaining range.

B. Overutilization for commercial, recreational, scientific, or educational purposes None known.

C. Disease or predation: Historic and ongoing introduction and spread of nonnative fish is a serious threat to this species through predation and competition. Exotic diseases and parasites introduced along with the nonnative fish are also a threat. D. The inadequacy of existing regulatory mechanisms: Existing regulatory mechanisms are allowing continuing decline of this species.

E. Other natural or manmade factors affecting_ its continued existence: The Little Colorado sucker is a relatively narrow endemic with an historic range limited to the upper reaches of the Little Colorado River basin. This limited range makes it particularly vulnerable to threats to its continued existence.

Give citations for primary sources of information (i.e. status reports, petition, journal publication, unpublished data from species experts): The Desert Fishes Recovery Team (species experts) has discussed the status of this species and based or personal knowledge and published and unpublished data has recommended that this speci be placed into category 2 due to historic and ongoing declines and continuing and future threats.

NEW SPECII CAsp 2

PRIORITY

Listing priority (Category 1 only): Estimated urgency of conducting a status survey (Category 2 only): Threat Taxonomy Prior- High Magnitude Immediacy ity ,, ., , • , ...• . .. . .' .:-,• ,:• Imminent Monotypic 1 Lou genus , Species 2 Subspecies 3 .•:.•:-.,:::::::::-•::::.-...::•-::----:-•::::::::•:•:•: :. 4pRiiii4440 -$* Monotypic 4 .: :-' "' - 7. :.:. • anus ': • • • " • •-•:•:•:•x•-•:•:-:•:•:•:•:-x• •• .:..:.:.:.:. • ... At...l.....,2.:...... ,:..... x :ii:iiiiii::: ...... :. Subspecies 6 Moderate Imminent Monotypic 7 to low genus Species 8 Subspecies 9 Non-imoniment Monotypic 10 genus Species 11 Subspecies 12 I

STATUS TREND Improving Stable Declining Possibly Extinct Unknown Not Applicable

PETITION STATUS

If under petition, last finding: Negative 90-day Positive 90-day Not warranted Warranted but precluded Date published in FR: NA Data petition received: MA

Regional contact (include phone number): Sally Stefferud (602/379-4720) Lead Field Office: Arizona Ecological Services Office Coordination accomplished (other Regional Offices, other FWS programs, Government agencies): Arizona Fisheries Resources Office, Arizona Game and Fish Department, Mew Mexico Department of Game and Fish

NEW SPECIES CAsp Regional Director, Fish and Wildlife Service Date Concur: Director, Fish and Wildlife Service Date • Do not concur: Director, Fish and Wildlife Service Date Director's Remarks:

NEW SPECI: CAsp

LISTING PRIORITY NUMBER ASSIGNMENT FORM

Date: January 19, 199.;

Scientific name: Catostomus (Pantosteus) clarki Common name: Desert sucker Group and family for animals, family for plants: Fishes - Catostomidae Previously published category assignment: 1 2 3A 3B 3C none Recommended new category assignment: 1 2 3A 3B 3C

Briefly summarize biological information (habitat, range, population estimates, etc.): Historic range: AZ,,NM, NV, UT, Sonora, MX. Two subspecies in Nevada are already in category 21 g. c. intermedius (White River desert sucker) and C. c. sp. (Meadow Valley Wash desert sucker). This candidate listing would add all of the remaining portion of the species, which may be composed of several mndescribed subspecies. Desert sucker are found in the White River in Nevada (C. c. intermedius), Meadow Valley Wash in Nevada (C. c. sp.), the Virgin River system in Arizona, Utah and Nevada, the Bill Williams system in Arizona, and the Gila River system in Arizona, New Mexico, and Sonora, Mexico. The desert sucker inhabits rapid, runs, and pools in rocky-bottomed streams.

A. The nresent or threatened destruction, modification, or curtailment of its habitat or range: Desert sucker has been extirpated or seriously reduced in numbers and distribution in a substantial portion of its historic range by dewatering, diversion, groundwater pumping, dam construction, channel and watershed erosion, and other factors. Additional water development and ongoing watershed damage threaten large portions of the remaining range.

B. OverutilizatiOn for commercial, recreational, scientific, or educational purposes: None known. C. Disease or predation: Historic and ongoing introduction and spread of nonnative fish is a serious threat to this species through predation, competition, and habitat alteration. Exotic diseases and parasites introduced along with the nonnative fish an also a threat.

D. The inadequacy of existina regulatory mechanisms: Existing regulatory mechanisms are allowing the continuing decline of this species.

E. Other natural or manmade factors affecting its continued existence:

Other pertinent information (land ownership, prelisting activities, etc.): Land ownership includes several Federal agencies, States, Indian reservations, and private and corporate entities. Prelisting activities include many ongoing efforts by the IFS and other State and Federal agencies and private organizations to protect river flows and aquatic habitats.

Give citations for primary sources of information (i.e. status reports, petition,. journal publication, unpublished data from species experts): The Desert Fishes Recovery Team (species experts) has discussed the status of this species and based on personal knowledge and published and unpublished data has recommended that this specie. be placed. into category 2 due to historic and ongoing declines and future threats.

NEW SPECIES! CACL •2

PRIORITY Listing priority (Category 1 only): Estimated urgency of conducting a status survey Cate ory 2 only): Threat Taxonomy Prior- Magnitude Immediacy ity k 1 ...... =rImminent ... Monotypic 1 . . . . . • • genus Species 2 Subspecies 3 .- iiii4:4*.0.* %. Monotypic 4

• P .• • • • • • • • ••••••••• .• •••••• .• W•• Subspecies 6 Moderate Imminent Monotypic. 7 to low genus Species 8 Subspecies 9 Non-imminent Monotypic 10 genus Species 11 Subspecies _ 12

STATUS TREND Improving Stable Declining Possibly Extinct Unknown Not Applicable

PETITION STATUS If under petition, last finding: Negative 90-day Positive 90-day Not warranted Warranted but precluded Date published in FR: MA Date petition received: MA

Regional contact (include phone number): Sally Stefferud (602/379-4720) Lead Field Office: Arizona Ecological Services Office Coordination accomplished (other Regional Offices, other FWS programs, Government agencies): Mew Mexico Ecological Services Office, Salt Lake City Ecological Services Office (Region 6), Reno Ecological Services Office (Region 1), Arizona Game and Fish Department, New Mexico Department of Game and Fish APPROVAL/CONCURRENCE: The Regional Director must approve all changes to the candidate lists and changes in Category 1 listing priority. A copy of the .approved fora must be forwarded to the Washington Division of Endangered Species for data tracking purposes. The director must co cur on all addit'ons to Category 1.

#.0" Approve: ;MAN gb gio 1 Director, h and W dlife Service Date •

NEW SPECIES CACL J,1

Regional Director, Fish and Wildlife Service Date

Concur: Director, Fish and Wildlife Service Date Do not concur: Director, Fish and Wildlife Service Date Director's Remarks:

•:.

NEW SPECIE:. CACZ

LIST:NG PRIORITY NUMBER ASSIGNMENT FORM

Date: January 19, 1:

Scientific name: Catostomus insignia

Common name: Sonora sacker Group and family for animals, family for plants: Fishes - Catostomidae Previously published category assignment: 1 2 3A 33 3C none •••••■•••■ Recommended new category assignment: 1 2 3A 33 3C

Briefly summarize biological information (habitat, range, population estimates, etc. Historic range: AZ, MX, Sonora, MX. Endemic to Gila and Bill Williams River basins Inhabits pools in gravel and rocky-bottomed streams.

A. The present or threatened destruction, modification, or curtailment of its habit • . . or renqe: Sonora sucker has been extirpated or seriously reduced in numbers and distribution in a substantial portion of its historic range by dewatering, diversior groandwater pumping, dam construction, channel and watershed erosion, and other factors. Additional water development and ongoing watershed damage threaten large portions of the remaining range.

B. Overutilization for commercial, recreational, scientific, or educational purposg None known. C. Disease or predation: Historic and ongoing introduction and spread of nonnativ fish is a serious threat to this species through predation, competition, and habita alteration. Exotic diseases and parasites introduced along with the nonnative fish also a threat.

D. The inadequacy of existing regulatory mechanisms: Existing regulatory mechanis: are allowing the continuing decline of this species.

E. Other natural or manmade factors affecting its continued existence:

Other pertinent information (land ownership, orelisting activities, etc.): Land ownership includes several Federal agencies, States, Indian reservations, and priva and corporate entities. Prelisting activities include many ongoing efforts by the and other State and Federal agencies and private organizations to protect river f/c and aquatic habitats.

Give citations for primary sources of. information (i.e. status reports, petition, journal publication, unpublished data from species experts): The Desert Fishes Recovery Team (species experts) has discussed the status of this species and based personal knowledge and published and unpublished data has recommended that this spe be placed into category 2 due to historic and ongoing declines and future threats.

NEW SPEC CAIN PRIORITY

Listing priority (Category 1 only): Estimated urgency of conducting a status survey (Cate ory,2 only) Threat Taxonomy Prior- Magnitude Immediacy ity mminent Monotypic 1 genus Species 2 Subspecies 3 ...... -::. lionot ypic 4 • • , . , :: % . genus

Subspecies . Moderate Imminent Monotypic 7 to low genus Species 8 . Subspecies 9 Non-imminent Monotypic 10 genus Species Subsoecies 12

STATUS TREND

Improving Stable Declining- Possibly Extinct Unknown Not Applicable

PETITION STATUS

If under petition, last finding: Negative 90-day Positive 90-day Not warranted Warranted but precluded Date published in FR: NA Date petition received: NA

Regional contact (include phone number): Sally Staffcrud (602/379-4720)

Lead Field Office: Arizona Ecological Services Office Coordination accomplished (other Regional Offices, other FWS programs, Government agencies): New Mexico Ecological Services Office, Arizona Game and Fish Department, New Mexico Department of Game and Fish

APPROVAL/CONCURRENCE: The Regional Director must approve all changes to the candida lists and changes in Category 1 listing priority. A copy of the approved form must forwarded to the Washington Division of Endangered Species for data tracking purpose The director must co cur on al additions to Category 1.

Approve: / 1 14 ionai Dir , Fish and Wildlife Service Dace

NEW SPEC: CAIN

Concur: Director, Fish and Wildlife Service Date

Do not concur: Director, Fish and Wildlife Service Date

Director's Remarks:

NEW SPF CAIN LISTING PRIORITY NUMBER ASSIGNMENT FORM Date: January 18, 1994 Scientific name: EMpidonax fulvifrons pygmaeus Common name: (Northern) Buff-breasted flycatcher Group and family for animals, family for plants: Birds: Passeriformes (Tyrannidae) Previously published category assignment: None Recommended new category assignment: 2 Briefly summarize biological information (habitat, range, population estimates, etc.): The northern subspecies of the buff-breasted flycatcher breeds in montane regions of central Arizona and southwestern New Mexico and adjacent highlands of northern Mexico (Sonora, Chihuahua, Durango). It occurs in relatively open pine forests and pine-oak woodlands, generally above 5500 feet elevation. It also breeds in montane canyon riparian groves of sycamore and other deciduous trees, at similar elevations. Other subspecies range south to Honduras and El Salvador. Prefers open pine forests or oak- pine woodlands, and adjacent riparian groves. Forages in grassy or herbaceous understories of relatively open forests and woodlands. Population declines and contraction of range are known for Arizona and New Mexico. Several authorities consider it still common in some parts of Mexican range. Briefly summarize presently known status/threats in terms of the five factors of section 4 of the Act. (If this is a revision to a previous classification, describe reasons for changing the category and/or listing priority number): A. The present or threatened destruction, modification, or curtailment of its habitat or range: Various land management practices are believed to have resulted in the los. and modification of buff-breasted flycatcher habitat. Wildfire control, livestock grazing, and other forest management practices are believed to have resulted in elimination of grassy ground cover, and encroachment by brushy juniper and young trees However, some authors believe the causes of the decline are poorly understood. They note that some areas formerly occupied by the bird remain unchanged, but these areas are not now occupied. Evidence suggests that the range and numbers of the buff-breasted flycatcher have declined in Arizona and New Mexico. However, the magnitude of this decline is not specifically quantified. Some authors believed the bird may have once been locally common in the United States portion of its range, while others describe it as rare, uncommon or little known in the region, even prior to the declines.

B. Oyerutilizatign for commercial, recreational, scientific, or educational purposes: None known.. C. Disease or predation: None known. D. The inadequacy of existing regulatory mechanisms: Take of individuals and active nests is prohibited by the Migratory Bird Treaty Act. State game laws regulate take c individuals for scientific purposes. E. Other natural or manmade factors affecting its continued existence: This flycatcher may suffer brood parasitism by the brown-headed and bronzed cowbirds. 2

Other pertinent information (land ownership, prelisting activities, etc.) Land Ownership: U.S. Forest Service, U.S. Army, Bureau-of land Management, Private, San Carlos Apache Reservation, White Mountain Apache Reservation. Prelisting activities: Literature review and consultation with Arizona and New Mexico wildlife management agencies has continued since petition activities. The Arizona Ecological Services State Office has reviewed and endorsed several research and monitoring projects. Give citations for primary sources of information (i.e. status reports, petition, journal publication, unpublished data from species experts): American Ornithologists' Union. 1983. Checklist of North American birds, 6th edition. Allen Press, Lawrence, Kansas. 877 pp. Arizona Game and Fish Department. 1988. List of threatened native wildlife in Arizona. Arizona Game and Fish Commission, Phoenix Arizona. 32 pp. Bailey, P.M. 1928. Birds of New Mexico. New Mexico Department of Game and Fish. Santa Fe, New Mexico. 807 pp. Bent, A.C. 1963. Life histories of North American flycatchers, larks, swallows and their allies . Dover Press, New York, New York. 555 pp. Blake, E.R. 1953. Birds of Mexico. University of Chicago Press, Chicago, Illinois. 644 pp. Davis, L.I. 1972. A field guide to the birds of Mexico and Central America. University of Texas Press, Austin, Texas. 282 pp. Hubbard, J.P. 1978. Revised checklist of the birds of New Mexico. New Mexico Ornithological Society, Publication No. 6. 1972. Notes on Arizona birds. Nemouria, Occasional Papers, Delaware Museum of Natural History 5:1-22. Keller, R. 1992. Effects of ponderosa pine overstory and snags on the songbird community, northern Arizona. February 1992. Report presented to The Wildlife Society, Thatcher, Arizona. 18 pp. Ligon, J.S. 1961. New Mexico birds and where to find them. University of New Mexicc Press, Albuquerque, New Mexico. 360 pp. Monroe, B.L. 1968. A distributional survey of the birds of Honduras. American Ornithologists' Union, Ornithological Monographs No. 7. Allen Press, Inc., Lawrence, Kansas. 458 pp. Monson, G. and A.R. Phillips. 1981. Annotated checklist of the birds of Arizona. The University of Arizona Press, Tucson, Arizona. 240 pp. New Mexico Department of Game and Fish. 1979. Handbook of species endangered in New Mexico. Santa Fe, New Mexico. Peterson, R.T. and E. Chalif. 1973. A field guide to Mexican birds. Houghton Miff ii Company, Boston, Massachusetts. 432 pp. Phillips, A.R. 1968. The instability of the distribution of land. birds in the southwest. In Collected papers In honor of Lyndon Lane Hargrave. Papers of the Archaeological Society of New Mexico 1:129-162. 3

., J. Marshall, and G. Monson. 1964. The Birds of Arizona. University of Arizona Press, Tucson, Arizona. 212 pp. Richardson, E. 1992. Petition to list the buff-breasted flycatcher ( Empidonax fulvifrons) under the endangered Species Act of 1973. Letter to Fish and Wildlife Service Regional Director, Region 2, Albuquerque, New Mexico. June 2, 1992. 1 pg. 4

PRIORITY Listing priority (Category 1 only): Estimated urgency of conducting a status survey (Category 2 only): Threat Taxonomy Prior- High Magnitude [Immediacy _ MEDIUM High Imminent Monotypic 1 ew genus Species 2 Subspecies 3 Non-imminent Monotypic 4 genus Species 5 Subspecies 6 Moderate Imminent Monotypic 7 to low genus Species 8 Subspecies 61 Non-imminent Monotypic 10 genus Species 11 _Subspecies 12

STATUS TREND

Improving StabLO Dcolining r000ibly Extinct UNKNOWN Not Applioablo PETITION STATUS If underqoetition, last finding*: Negative 90-day Positive 90-day Not warranted Warranted but precluded *NOTE: Petition requested listing Empidonax fulvifrons; this proposal is for the northern subspecies only, E. f. pygmaeus.

Date published in FR: April 14, 1993 (58 FR 19402) Date petition received: June 8, 1992 Nct.r-sksil 3 — Regional contact (include phone number)- -SemagvarerePAPArt-e--04340•-.7-6.6■-tein Lead Field Office: Arizona Ecological Services State Office (Tim Tibbitts/Rob Marshall). Coordination accomplished (other. Regional Offices, other FWS programs, Government agencies): The Arizona Ecological Services State Office has discussed status, trends, and information needs with the U.S. Forest Service (Coronado National Forest, Rocky Mountain Forest and. Range Experimental Station), the University of Arizona, the Arizor Game and Fish Department, the New Mexico Department of Game and Fish, and the New Mexico Ecological Services Field Office. I

Approve: e ional Dire Fish and Wildlife Service

Concur: Director, Fish and Wildlife Service Date

Do not concur: Director, Fish and Wildlife Service Date

Director's Remarks:

Azzach=an: 3

CA:EGORY AND 1:3:;G PR:OR:TY ASSIGNII.ZNT FORM

Data:

RANA SUBAQUAVOCALIS Scientific name: • Ramsey Canyon Leopard Frog NOMM-R. rs. , Co and faniLY for anizmala fa=ilv for olants:

Previously oublished category ASSIGNMENT (CLrole one): 1 2 23 22

Recommended new category assignment (cirole one): (._v 2S 2=

Briefly summarize biological into=nation (habitat, range, coculation estimates, etc):

The species, which was described in 1993, is extant at only 2 artificial impoundments in Ramsey and Brown canyons of the Huachuca Mountains in southeastern Arizona. Total adult frogs at both localities probably number less than 100. The species was recently extirpated from a third locality in Brown Canyon. A related, undescribed species, may occur in Leslie Canyon of the Swisshelm Mountains in southeastern Arizona.

Briefly summarize tresently known status/threats in terms of the five factors of Section 4 the Act. (2.1 this is a revision of a previous classification, describe reasons for changing . category and/or LISTING priority :Umber):

4 A. The oresent or threatened destruction, modification. or curta 1ment of L s habitat or :a:

The species was likely much more widely distributed and may have originated in the upper San Pedro drainage, which no longer supports leopard frogs due. to habitat alteration and introduction of exotic fish and bullfrogs. The artificial impoundments at which the species is extant are subject to siltation and breaching during high stream flows.

4 - , B. Ov=...-'""*ation for commercial recreational, scient =ie., or educational ourtoses.

No known threats.

C. Disease or

Although disease is uroennwn 1-hia F.nr,as in the southwest and elsewhere have declined due to postmetamorohic 2

D. TH EM ' NADECUACV OF EXISTINC RECULATORV mechanisms. The species and its habitat are well protected from , human-caused impacts in Ramsey Canyon. Collection is prohibiter by State 4 ,, 4 laT.;. NATUR= 1 OR MARMADC. FACTORS -F = -* R.0 ITS CONTIRUED EXISTENCE. The species is in critical danger of extinction due to small population size, only 2 extant localities, and the dynamic nature of the streamside habitats in which it occurs. Small populations with low viabilities are probably the norm for most ranid frogs, but such small populationsare often a part of a larger metapcpulation in which genetic exchange occurs between populations and sites from which frogs are extirpated can be recolonized from adjacent populations. The Ramsey Canyon and Brown Canyon populations are probably geographically isolated, precluding this memapopulation effect. Other pertinent information The Ramsey Canyon population is located on the Nature Conservancy's Ramsey Canyon Preserve. The Brown Canyon site is currently in private ownership, but the Coronado National Forest will likely acquire the property. Give citations for trimary sources of information ( e.g., status report, petition, journal cublication, unpublished data from species exert):

Platz, J.E. 1993. Rana subaquavocalis, a remarkable new species of leopard frog (Rana pipiens complex) from southeastern Arizona that calls under water. Journal of Herpetology 27(2):154-162 Platz, J.E. 1993. Rana subaquavocalis status review. Report to the Nature Conservancy, Tucson, Arizona.

PRIORITY (circle one)

LISTING priority ( CATEGORY I only): Estimated urgent-, OF CONDUCTING A STATUS stir7ev ( CATEGORY 2 ONLY): Threat Taxonomy PRIOR- Hacmitude Immediacy • ity NIGH

High Imminent M—notyp't genus Hedium Species Subspecies 3 Low Nom—imminent Monotypic genus 4 SPECIES , Subspecies 6 ,4 7 4 Ut7 e1==.7.= t,11. =R ==NT MONOMYTIC GENUS

SULTSPECIES 9 MONOTYMI: GENUS SPECIES 3

STATUS TREND (circle one) imoroving Stable Declining )Possibly Extinct Unknown Not Atolicable

PETETION STATUS

T! under oetition, last finding (circle one): Negative 90-day POSITIVE 90-day

Not warranted

Date oublished in FR: Date oezition received:

REGIONAL contact (include phone number): 1PWRg'Mla"=" 1 JO K (C,-‘.3) 3 71 - -J.E1 Lead Field Office: _ . Coordination accomplished (other Regional Offices, other FWS programs, Government agenci kes■ :1_ clo,\

APPROVAL/CONCURRENCE: The Regional Director must aomrove all changes to the candidate AND changes in Category 1 listing priority. A copy of the apyroved form must be forwar the Washington Division of Endangered Species for data tracking proses. The director concur on all additi ns of species to Category 1. 4/1 i L Amorove: rn tilS(Ctq Date JUL. 1 CONCUR: 1.. 1994 Director, Fish and Wi-dlite Service Date

Do not concur: Director, Fish AND Wildli±e Service Dare

Director's REMARICS-

f :SV.

) 3

CATZGORY AND LISTING PRIORI= ASSIGNHMNT FOPS

z L D are:.-ja v■ V k, f

Scientific name -

Common name: -) Grot= and family for animals, family for clants: \a- v% ra.N. C*. 2,7.. 2F, IC ncne

RecommatLfe:f new one): 2 A 23

Briefly sc=marice - Lzformation (habitat, range, copulation esticates, etc):'

Rana chiricahuensis is primarily an inhabitant of montane streams and pools in southeastern and east central Arizona, southwestern New Mexico, and the eastern slopes of the Sierra Madre Occidental in Sonora and Chihuahua, Mexico. Frogs from southeastern Arizona and Mexico are morohclogicallv distinct frcm those in central Arizona and New Mexico and may represent a distinct subspecies or species. The species has all but disappeared from central Arizona, has declined dramatically in southeastern Arizona, and is declining in New Mexico;

riefly summarize presently known status/threats in terms of the five factors of Section 4 of ae Act. (If this is a revision of a previous classification, describe reasons for changing t category and/or listing Priority number):

A. The cresent or threatened destruction, modification, or curtailment of its habitat or =a=

The species was extant at only 2 of 36 historic Arizona localities surveyed in the 1980's. Although several new localities have been found,'populations are small, the riparian habitats occupied by this -pecies are dynamic, and population size appears to fluctuate Greatly. The Region 2 Herpetological Team recommended this speciEs be moved to category 1.

3. Overu-'14 -ation.for commercial, recreational, scientific, or educational turroses.

The species may occasionally be harvested for food, particularly in Mexico, but collection is prohibited in Arizona and collecting has not been cited as a threat to this species.

C. Disease or credation.

- 4-4 D'eda ^N BY INTRODUCED BULLFROGS and exotic fish have contributed to the extirpation of populations. Environmental CZMZAM'N=ZION, AIRBORNE NTALLUTANTS FROM COPPER smelters ---CASAA A-= - -= OZONE LAVER, MAY BE PARTLY RESPONSIBLE FOR THE DECLINE OF THIS . soaa:es. 7-o=z7=z-=moronlc deazn svmdrome has r.=oenzl: been 2

D. THE.IRMDECUACV OF EXISTINC meculatc-v mechanisms. Although collecting is prohibited in Arizona, .the habitat of the Chiricahua leopard frog is not protected. E. Other natural or manmade factors affectina its continued existence. Although extirpation of populations can sometimes be attributed to habitat destruction, predation by exctics, or other factors, this species has disappeared from Many localities that appear nearly pristine. Thus, we do not fully understand all the mechanisms causing the declining statusof this species.

Other pertinent information (land ownership, prelisting activities, etc.):

Most extant localities in the United States are in the Coronado National Forest of Arizona and the Gila National Forest in New Mexico.

- Give citations for primary sources of information (e.g., status renort, petition, journal PUBLICATION, unpublished data from species expert): Clarkson, R.W., and J.C. Rorabaugh. 1989. Status of leopard frogs (Rana pipiens complex: Ranidae) in Arizona and southeastern California. Southwestern Naturalist 34(4):531-538 Wood, T. 1991. Results of 1991 amphibian monitoring on the Coronado National Forest. The Nature Conservancy and U.S. Forest Service.

Anonymous. 1993. Postmetamorphic death syndrome. Froglog No. 7.

iredl, M. 1993. Global amphibian decline: have Arizona's amphibians been affected? Sonoran HerpetA.logist 6(2):14-21. Recommendations of Region 2 Herpetological Team Listing priority (Category I only): Estimated urgency of conducting a survey (Category 2 only): Threat Taxonomy Prior- Magnitude Immediacy ity High

Lmminent MONOTYPIC genus MEDIUM Species Subspecies Low Non-imminent MONOTYPIC GENUS 4 • Species 5 Subspecies 6 'nderace to Imminent Monotyvic genus 7 'Species 8 Substecies 9 Non-imminent MONOTYPIC genus 10 c-.-zoc

4 C 3 !! STATUS TREND (circle one)

'Imnroving Stable. Declining ) Possibly Extinct Unknown Not Applicable

• PETITION STATUS

, 4 -4 fc unAet -=- ' cn, last finding (circle one): Negative 90-day Positive 90-day

Not war=anted Warranted but precluded

Date nublished in FR: Dace netition received:

Regional contact (include phone number): Q‘C:Z.3) -3—TEK--14717—C) Lead Field Office: li)c-N •-•-•

Coordination accomplished (other Regional Offices, other FWS programs, Government agenciez.

Coordination with the New Mexico State Office, the Regional Office, and the States of New Mexico and Arizona has occurred through the Region 2 Herpetological Team

APPROVAL/CONCURRENCE: The Regional Director must approve all changes to t:,e candidate li: and changes in Category 1 listing priority. A cony of the aporoved form Must be forwardec the Washington Division of Endangered Species for data tracking purposes. he director mt concur on all additi ns of species to Category 1. iff4

Annrove: 1-1141(4 Date JUL 1 1 1994 Concur: Director, Fish and Wildlife Service Date

• Do not concur: Director, Fish and Wildlife Service Date

Diredtor's Remarks: