DOCSLIB.ORG

SAR5IA the Swan Islands, Honduras

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
SAR5IA the Swan Islands, Honduras SHALLOW-WATER AND TERRESTRIAL BRACHYURAN CRABS OF ROATAN AND THE SWAN ISLANDS, HONDURAS ,„„.„,> CRUSTACEA LIP"' DONALD E. KEITH JJJM^HSONLAHJ '1 KEITH, DONALD E. 1985 12 30. Shallow-water and terrestrial brachyuran crabs of Roatan ant SAR5IA the Swan Islands, Honduras. - Sarsia 70:251-278. Bergen. ISSN 0036-4827. There are relatively few published accounts of Brachuyra from the northwestern Caribbean and none dealing specifically with the Bay Islands and Swan Islands off mainland Honduras. Brachyura were collected from shallow-water and terrestrial habitats at the Swan Islands from April 1973 through June 1976 and at Roatan and other Bay Islands from May 1975 through March 1979. Sixty-seven species are reported including 32 from the Swan Islands and 50 from Roatan. Of these, 21 species were not previously reported from northwestern Caribbean waters. One new species of Potamocarcinus was discovered in a freshwater stream at Port Royal, Roatan. Species diversity was greater at Roatan resulting primarily from the much greater diversity of habitats. Donald E. Keith, Department of Biological Sciences, Tarleton State University, Tarleton Station, Stephenville, Texas 76402, U.S.A. Swan. There is no source of freshwater. One INTRODUCTION brackish-water pool is located near Buffalo Point. There are few published accounts of Brachyura from Drinking-water on the Islands is obtained from the western Caribbean and none dealing specifically cisterns constructed by the US. Weather Service. with the Bay Islands or Swan Islands, Honduras. There are no mangroves or mud flats as found on the Major taxonomic publications on west Indian Brach- Bay Islands. The low habitat diversity results in a yura include papers by CHACE & HOBBS (1969) and low diversity of crab species as compared to the Bay RATHBUN (1933). Other broad resources of major Islands. Principal habitat types at the Swan Islands taxonomic significance include four monographs by include coral reefs, Thalassia flats with loose coral RATHBUN (1918, 1925, 1930, 1937) on crabs of rubble, rocky shores, sand beaches, and wooded America and papers by WILLIAMS (1965), GUINOT terrestrial areas. Of the 32 species collected from the (1970), and GARTH (1978). POWERS' (1977) catalog Swan Islands, none was limited to the islands and and bibliography of crabs of the Gulf of Mexico also most ranged throughout the Caribbean. contains Caribbean species. Taxonomic nomencla- The Bay Islands include 65 cays and 8 islands of ture in this study follows primarily that of RATHBUN which Roatan is the largest. Besides Roatan, Saint except where noted. GUINOT (1970) made major Helene, Morat, and Barbaret were also visited. revisions of genera in the family Xanthidae. These Roatan, however, was most extensively collected revisions have been included, and RATHBUN'S older during the study. This island is approximately 30 km nomenclature also cited. GARTH (1978) used Gui- long and has 4 km maximum width. It is the not's revised names as subgenera of the older emergent crest of a narrow ridge which runs along genera. the south side of the Bartlett Trough. An account of The Swan Islands and Bay Islands are located in the geology of the island is given by MCBIRNEY & the northwestern Caribbean off the coast of BASS (1969). Geographical information may be mainland Honduras. The Swan Islands are situated found in DAVIDSON (1974). approximately 160 km northeast of the Honduran Unlike the Swan Islands, Roatan has an extreme coast and the Bay Islands about 50 km north of the diversity of habitats including coral reefs, Thalassia mainland (Fig. 1). flats, cobble and sand beaches, rocky shores, man- Three islands oonstitute the Swan Islands chain: grove swamps, mud flats, estuarine bays, freshwater Great Swan, Little Swan, and Booby Cay. Fringing streams, and wooded terrestrial areas. The increased reefs are developed around the perimeter of the habitat diversity results in an increased crab diversi- islands with the most extensive reef growth occurr- ty. Fifty crab species were identified from Roatan. ing along the northern shores. This paper provides a convenient means for Habitat diversity at the Swan Islands is consider- recognizing most of the Bay Islands and Swan ably less than at the Bay Islands. Maximum eleva- Islands species and includes information important tion on Great Swan is only 14 m and 20 m on Little to the geographic distribution of many Caribbean 251 Dromia erythropus (GEORGE EDWARDS, 1771) Fig. 2A. Distinguishing features. Carapace pilose, wi- der than long with posterior lateral margins converg- ing. Front small and tridentate. Four prominent anterior lateral teeth. Range. From Bermuda and the Bahamas, throughout the Gulf of Mexico and Caribbean to Sao Paulo, Brazil. Habitat. Hard substrates including corals, shells, and rocks. Reported by FEEDER (1973) to be most common at depths of less than 46 m, but known to 364 m from some areas. Remarks. The dorsal surface of the carapace is characteristically covered with sponges or compound ascidians. A single specimen was collected at Fort Cay near the water's edge where it presumably was washed in from the nearby reef. Dromidia antillensis STIMPSON, 1858 Fig 2B. Distinguishing features. Carapace pubescent, species. Distinguishing features are given for each longer than braod with posterior lateral margins species as an aid for recognizing differences between subparallel. Frontal region longitudinally grooved related crabs and are not intended to be species along middle; front strongly deflexed and 5-toothed descriptions. including supraorbital teeth. Lateral margins of carapace 4-toothed and deflected toward corner of MATERIAL AND METHODS buccal areas. Brachyuran collections were made from terrestrial and Range. From Bermuda, North Carolina, Bahamas shallow-water habitats at the Swan Islands during April and Gulf of Mexico, throughout the Caribbean to 1973, July 1974. January 1975 and June 1976. Crabs were Espirito Santo, Brazil. collected by hand during the day. Night collections were Habitat. Reported from hard bottoms such as also made intertidally and in various terrestrial habitats using lights and nets. Collections from coral reef habitats rock, shells, and coral at depths from shore to 331 m. were made with the aid of SCUBA equipment. Some coral Collected at Roatan in shallow water from Thalassia heads were returned to the lab and pulverized to obtain flats. associated crab species. Shallow-water sediments were Remarks. The dorsal surface is commonly covered screened using a No. 60 standard sieve and the undersur- faces of coral rubble were carefully examined for crabs. by a sponge or compound ascidian. Similar techniques were used to collect brachyurans at Roatan and other Honduran Bay islands with the addition of dredging. Extensive collections were made along the Subsection Oxystomata southern shores of Roatan during March 1979. Less Family Calappidae extensive collections were made at Saint Helene and Barbaret. Collections of brachyurans made by Dr. J. C. Calappa angusta A. MILNE EDWARDS, 1880 Britton, Texas Christian University, during May 1975, May Fig. 2C. 1976, and March 1977 were also examined. May 1975 collections included some crabs taken by dredging in Distinguishing features. Carapace slightly wid- approximately 35 m of water off Roatan. er than long with anterolateral margins finely Drawings of crabs included in this study were made by granulate, with somewhat larger granules at inter- tracing projected transparencies of each species. Fine vals; front bilobed. Tooth at posterolateral angle of details were added by microscopic examination. carapace is largest followed anteriorly by four smaller teeth diminishing in size, and posteriorly by SYSTEMATIC ACCOUNT one small and one or two very minute teeth. Orbit Section Brachyura completely separated from antennular cavity. Cheli- peds with upper margin of palm bearing six to eight Subsection Dromiacea teeth and lateral margins with coarse granules Family Dromiidae interspersed with tubercles. 252 Range. North Carolina, Florida, Gulf of Mexico, and sand bottoms from depths from 13 to 274 m. Yucatan to Grenada and Barbados. Specimens were collected at Roatan by dredging Habitat. Reported from coral, broken shell, gravel over Thalassia flats. 253 Calappa gallus (HERBST, 1803) Habitat. Reported from coral, sand, gravel and Fig. 2D. shell bottoms from depths of 10 to 329 m. At Roatar Distinguishing features.Carapace width slight- this species was collected from dredges over a ly exceeds length with anterior two-thirds covered sand-flat area "at 10 m. with tubercles; posterior one-third bears short gra- Iliacantha sparsa STIMPSON, 1871 nulated ridges. A deep sulcus occurs between the Fig. 3A. gastric and hepatic regions. Longitudinal furrows Distinguishing features. Carapace globular, separate the cardiac and branchial regions. Postero- longer than broad with three spines at posterior end lateral expansions well developed with six teeth, which are widely separated and divergent. Median three anterior and two posterior to posterolateral spine longest and all have upturned tips. Spine also tooth. Prominent rostrum with four subequal blunt present on subhepatic margin. Chelipeds with slen- teeth. der palms. Fingers and palm subequal in length. Range. From Bermuda and Florida Keys, Range. Northwest of Tortugas, Puerto Rico, Bar- throughout the Caribbean to Bahia, Brazil. GARTH bados to Bahia, Brazil. Roatan collections extend (1978) reports this species to occur also in the the distribution to the
Load more

Recommended publications
  • A Classification of Living and Fossil Genera of Decapod Crustaceans
    RAFFLES BULLETIN OF ZOOLOGY 2009 Supplement No. 21: 1–109 Date of Publication: 15 Sep.2009 © National University of Singapore A CLASSIFICATION OF LIVING AND FOSSIL GENERA OF DECAPOD CRUSTACEANS Sammy De Grave1, N. Dean Pentcheff 2, Shane T. Ahyong3, Tin-Yam Chan4, Keith A. Crandall5, Peter C. Dworschak6, Darryl L. Felder7, Rodney M. Feldmann8, Charles H. J. M. Fransen9, Laura Y. D. Goulding1, Rafael Lemaitre10, Martyn E. Y. Low11, Joel W. Martin2, Peter K. L. Ng11, Carrie E. Schweitzer12, S. H. Tan11, Dale Tshudy13, Regina Wetzer2 1Oxford University Museum of Natural History, Parks Road, Oxford, OX1 3PW, United Kingdom [email protected] [email protected] 2Natural History Museum of Los Angeles County, 900 Exposition Blvd., Los Angeles, CA 90007 United States of America [email protected] [email protected] [email protected] 3Marine Biodiversity and Biosecurity, NIWA, Private Bag 14901, Kilbirnie Wellington, New Zealand [email protected] 4Institute of Marine Biology, National Taiwan Ocean University, Keelung 20224, Taiwan, Republic of China [email protected] 5Department of Biology and Monte L. Bean Life Science Museum, Brigham Young University, Provo, UT 84602 United States of America [email protected] 6Dritte Zoologische Abteilung, Naturhistorisches Museum, Wien, Austria [email protected] 7Department of Biology, University of Louisiana, Lafayette, LA 70504 United States of America [email protected] 8Department of Geology, Kent State University, Kent, OH 44242 United States of America [email protected] 9Nationaal Natuurhistorisch Museum, P. O. Box 9517, 2300 RA Leiden, The Netherlands [email protected] 10Invertebrate Zoology, Smithsonian Institution, National Museum of Natural History, 10th and Constitution Avenue, Washington, DC 20560 United States of America [email protected] 11Department of Biological Sciences, National University of Singapore, Science Drive 4, Singapore 117543 [email protected] [email protected] [email protected] 12Department of Geology, Kent State University Stark Campus, 6000 Frank Ave.
    [Show full text]
  • Notes on the Occurrence of Some Poorly Known Decapoda (Crustacea) in the Southern North Sea
    NOTES ON THE OCCURRENCE OF SOME POORLY KNOWN DECAPODA (CRUSTACEA) IN THE SOUTHERN NORTH SEA by J. P. H M ADEMA Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands F CREUTZBERG & G J VAN NOORT Netherlands Institute for Sea Research, Texel, The Netherlands With 9 text-figures, 6 tables, 5 maps INTRODUCTION Since April 1972 an ecological trawl-survey programme has been undertaken by the Netherlands Institute for Sea Research (NIOZ), Texel, in the southern North Sea with the R. V. "Aurelia". The main object is to obtain information on distribution, density, biomass and fluctuations of crawling or swimming demersal (epibenthic) fauna such as small fishes, shrimps, prawns, crabs, asteroids, ophiuroids and some gastropods, for the evaluation of the role of these carnivores in the benthic ecosystem of the southern North Sea. Sedimentological aspects of the area are described by Creutzberg & Postma (1979). Within the context of the present paper the most important feature is the mesh of 5 x 5 mm2 of the cod end of the 5V2 m beam-trawl used and the extensive area of 5000-10,000 m2 covered during each haul. These exceptional circumstances resulted into faunistically interesting catches which gave rise to a cooperation with taxonomic specialists of the Rijksmuseum van Natuurlijke Historie (RMNH), Leiden. The present paper deals with decapod crustaceans, collected during "Aurelia"-cruises, which are considered to be scarce or rare in the southern North Sea, completed with data from bottom-samples and other sources The species in question are: Pandalina brevirostris, Spirontocans lilljeborgii, Alpheus macrocheles, Pontophilus spinosus, Pontophilus bi.spino.sus, Galathea dispersa, Ebalia tubero.sa, Ebalia tumefacta, Ebalia cranchii, Atelecyclus rotundatus, Monodaeus couchii, Callianassa subterranea, Callianas.sa tyrrhena, Upogebia stellata and Upogebia deltaura Of the genus Macropodia a number of specimens have been collected, which partly were identified as M.
    [Show full text]
  • Phylogenetic Relationships of the Plagusiidae Dana, 1851
    PHYLOGENETIC RELATIONSHIPS OF THE PLAGUSIIDAE DANA, 1851 (BRACHYURA), WITH DESCRIPTION OF A NEW GENUS AND RECOGNITION OF PERCNIDAE ŠTEVCIˇ C,´ 2005, AS AN INDEPENDENT FAMILY BY CHRISTOPH D. SCHUBART1,3) and JOSÉ A. CUESTA2,4) 1) Biologie I, Universität Regensburg, D-93040 Regensburg, Germany 2) Instituto de Ciencias Marinas de Andalucía, CSIC, Avenida República Saharaui, 2, E-11519 Puerto Real, Cádiz, Spain ABSTRACT A molecular and morphological analysis of representatives of the family Plagusiidae, including all members of Plagusia Latreille, 1804, and the recently established Davusia Guinot, 2007, was carried out. Due to marked differences in adult and larval morphology, as well as mitochondrial and nuclear DNA, two species of Plagusia,viz.,P. chabrus (Linnaeus, 1758), and P. dentipes De Haan, 1835, are considered sister taxa but distinct from other members of the genus. They are transferred to a new genus, Guinusia. A molecular phylogeny suggests that Guinusia is not closer related to Plagusia than to the plagusiid genera Euchirograpsus H. Milne Edwards, 1853, and Miersiograpsus Türkay, 1978. Furthermore, with new evidence from mitochondrial and nuclear DNA as well as a reappraisal of the larval morphology, the genus Percnon Gistel, 1848, is formally removed from the Plagusiidae and recognized as a separate family, Percnidae Števciˇ c,´ 2005. RÉSUMÉ Une analyse moléculaire et morphologique des représentants de la famille des Plagusiidae comprenant tous les membres du genre Plagusia Latreille, 1804, et le genre récemment établi Davusia Guinot, 2007, a été réalisée. Pour tenir compte des nettes différences dans la morphologie adulte et larvaire ainsi que sur l’ADN nucléaire et mitochondrial, deux espèces de Plagusia, P.
    [Show full text]
  • And Gecarcoidea Lalandii H. Milne
    Journal of Natural History, 2002, 36, 1671–1685 First zoealstages of Epigrapsuspolitus Heller, E. notatus (Heller)and Gecarcoidealalandii H.Milne-Edwards, with remarks on zoeal morphologyof the Gecarcinidae Macleay (Crustacea: Brachyura) JOSE´ A.CUESTA†, HUNG-CHANG LIU‡and CHRISTOPH D. SCHUBART†1 †Department ofBiology, Laboratory for CrustaceanResearch, University ofLouisianaat Lafayette,Lafayette, LA 70504-2451,USA; e-mail: [email protected] ‡Department ofLife Science, National Tsing Hua University, Hsinchu, Taiwan (Accepted10 April 2001 ) Thecrab family Gecarcinidae Macleay, 1838 currently consists of 18speciesthat aregrouped in four genera. Larval data for the Gecarcinidae were only known forspecies of the genera Cardisoma Latreille,1825 and Gecarcinus Leach,1814. Inthe present paper, the rstzoeal stage of Gecarcoidealalandii H. Milne- Edwards,1837, Epigrapsuspolitus Heller,1862 and E. notatus Heller,1865 are describedand illustrated. Zoeal morphology of the Gecarcinidae is reviewed, takinginto account all previous descriptions and analysing the relationships betweenthe di Verentgenera of Gecarcinidae based on zoeal morphological characters.A seriesof typical morphological features is proposed for the zoea larvaeof this family di Verentiatingthem from the rest of the Grapsoidea. Keywords: Larvalmorphology, Gecarcinidae, Gecarcoidea , Epigrapsus, zoea. Introduction The grapsoid familyGecarcinidae has acircumtropical distribution, with many species known only from oceanic islands. The familypresently consists of 18species that aredistributed
    [Show full text]
  • Pu'u Wa'awa'a Biological Assessment
    PU‘U WA‘AWA‘A BIOLOGICAL ASSESSMENT PU‘U WA‘AWA‘A, NORTH KONA, HAWAII Prepared by: Jon G. Giffin Forestry & Wildlife Manager August 2003 STATE OF HAWAII DEPARTMENT OF LAND AND NATURAL RESOURCES DIVISION OF FORESTRY AND WILDLIFE TABLE OF CONTENTS TITLE PAGE ................................................................................................................................. i TABLE OF CONTENTS ............................................................................................................. ii GENERAL SETTING...................................................................................................................1 Introduction..........................................................................................................................1 Land Use Practices...............................................................................................................1 Geology..................................................................................................................................3 Lava Flows............................................................................................................................5 Lava Tubes ...........................................................................................................................5 Cinder Cones ........................................................................................................................7 Soils .......................................................................................................................................9
    [Show full text]
  • Checklists of Crustacea Decapoda from the Canary and Cape Verde Islands, with an Assessment of Macaronesian and Cape Verde Biogeographic Marine Ecoregions
    Zootaxa 4413 (3): 401–448 ISSN 1175-5326 (print edition) http://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2018 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4413.3.1 http://zoobank.org/urn:lsid:zoobank.org:pub:2DF9255A-7C42-42DA-9F48-2BAA6DCEED7E Checklists of Crustacea Decapoda from the Canary and Cape Verde Islands, with an assessment of Macaronesian and Cape Verde biogeographic marine ecoregions JOSÉ A. GONZÁLEZ University of Las Palmas de Gran Canaria, i-UNAT, Campus de Tafira, 35017 Las Palmas de Gran Canaria, Spain. E-mail: [email protected]. ORCID iD: 0000-0001-8584-6731. Abstract The complete list of Canarian marine decapods (last update by González & Quiles 2003, popular book) currently com- prises 374 species/subspecies, grouped in 198 genera and 82 families; whereas the Cape Verdean marine decapods (now fully listed for the first time) are represented by 343 species/subspecies with 201 genera and 80 families. Due to changing environmental conditions, in the last decades many subtropical/tropical taxa have reached the coasts of the Canary Islands. Comparing the carcinofaunal composition and their biogeographic components between the Canary and Cape Verde ar- chipelagos would aid in: validating the appropriateness in separating both archipelagos into different ecoregions (Spalding et al. 2007), and understanding faunal movements between areas of benthic habitat. The consistency of both ecoregions is here compared and validated by assembling their decapod crustacean checklists, analysing their taxa composition, gath- ering their bathymetric data, and comparing their biogeographic patterns. Four main evidences (i.e. different taxa; diver- gent taxa composition; different composition of biogeographic patterns; different endemicity rates) support that separation, especially in coastal benthic decapods; and these parametres combined would be used as a valuable tool at comparing biotas from oceanic archipelagos.
    [Show full text]
  • Part I. an Annotated Checklist of Extant Brachyuran Crabs of the World
    THE RAFFLES BULLETIN OF ZOOLOGY 2008 17: 1–286 Date of Publication: 31 Jan.2008 © National University of Singapore SYSTEMA BRACHYURORUM: PART I. AN ANNOTATED CHECKLIST OF EXTANT BRACHYURAN CRABS OF THE WORLD Peter K. L. Ng Raffles Museum of Biodiversity Research, Department of Biological Sciences, National University of Singapore, Kent Ridge, Singapore 119260, Republic of Singapore Email: [email protected] Danièle Guinot Muséum national d'Histoire naturelle, Département Milieux et peuplements aquatiques, 61 rue Buffon, 75005 Paris, France Email: [email protected] Peter J. F. Davie Queensland Museum, PO Box 3300, South Brisbane, Queensland, Australia Email: [email protected] ABSTRACT. – An annotated checklist of the extant brachyuran crabs of the world is presented for the first time. Over 10,500 names are treated including 6,793 valid species and subspecies (with 1,907 primary synonyms), 1,271 genera and subgenera (with 393 primary synonyms), 93 families and 38 superfamilies. Nomenclatural and taxonomic problems are reviewed in detail, and many resolved. Detailed notes and references are provided where necessary. The constitution of a large number of families and superfamilies is discussed in detail, with the positions of some taxa rearranged in an attempt to form a stable base for future taxonomic studies. This is the first time the nomenclature of any large group of decapod crustaceans has been examined in such detail. KEY WORDS. – Annotated checklist, crabs of the world, Brachyura, systematics, nomenclature. CONTENTS Preamble .................................................................................. 3 Family Cymonomidae .......................................... 32 Caveats and acknowledgements ............................................... 5 Family Phyllotymolinidae .................................... 32 Introduction .............................................................................. 6 Superfamily DROMIOIDEA ..................................... 33 The higher classification of the Brachyura ........................
    [Show full text]
  • A New Classification of the Xanthoidea Sensu Lato
    Contributions to Zoology, 75 (1/2) 23-73 (2006) A new classifi cation of the Xanthoidea sensu lato (Crustacea: Decapoda: Brachyura) based on phylogenetic analysis and traditional systematics and evaluation of all fossil Xanthoidea sensu lato Hiroaki Karasawa1, Carrie E. Schweitzer2 1Mizunami Fossil Museum, Yamanouchi, Akeyo, Mizunami, Gifu 509-6132, Japan, e-mail: GHA06103@nifty. com; 2Department of Geology, Kent State University Stark Campus, 6000 Frank Ave. NW, North Canton, Ohio 44720, USA, e-mail: [email protected] Key words: Crustacea, Decapoda, Brachyura, Xanthoidea, Portunidae, systematics, phylogeny Abstract Family Pilumnidae ............................................................. 47 Family Pseudorhombilidae ............................................... 49 A phylogenetic analysis was conducted including representatives Family Trapeziidae ............................................................. 49 from all recognized extant and extinct families of the Xanthoidea Family Xanthidae ............................................................... 50 sensu lato, resulting in one new family, Hypothalassiidae. Four Superfamily Xanthoidea incertae sedis ............................... 50 xanthoid families are elevated to superfamily status, resulting in Superfamily Eriphioidea ......................................................... 51 Carpilioidea, Pilumnoidoidea, Eriphioidea, Progeryonoidea, and Family Platyxanthidae ....................................................... 52 Goneplacoidea, and numerous subfamilies are elevated
    [Show full text]
  • From the Bohol Sea, the Philippines
    THE RAFFLES BULLETIN OF ZOOLOGY 2008 RAFFLES BULLETIN OF ZOOLOGY 2008 56(2): 385–404 Date of Publication: 31 Aug.2008 © National University of Singapore NEW GENERA AND SPECIES OF EUXANTHINE CRABS (CRUSTACEA: DECAPODA: BRACHYURA: XANTHIDAE) FROM THE BOHOL SEA, THE PHILIPPINES Jose Christopher E. Mendoza Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543; Institute of Biology, University of the Philippines, Diliman, Quezon City, 1101, Philippines Email: [email protected] Peter K. L. Ng Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543, Republic of Singapore Email: [email protected] ABSTRACT. – Two new genera and four new xanthid crab species belonging to the subfamily Euxanthinae Alcock (Crustacea: Decapoda: Brachyura) are described from the Bohol Sea, central Philippines. Rizalthus, new genus, with just one species, R. anconis, new species, can be distinguished from allied genera by characters of the carapace, epistome, chelipeds, male abdomen and male fi rst gonopod. Visayax, new genus, contains two new species, V. osteodictyon and V. estampadori, and can be distinguished from similar genera using a combination of features of the carapace, epistome, thoracic sternum, male abdomen, pereiopods and male fi rst gonopod. A new species of Hepatoporus Serène, H. pumex, is also described. It is distinguished from congeners by the unique morphology of its front, carapace sculpturing, form of the subhepatic cavity and structure of the male fi rst gonopod. KEY WORDS. – Crustacea, Xanthidae, Euxanthinae, Rizalthus, Visayax, Hepatoporus, Panglao 2004, the Philippines. INTRODUCTION & Jeng, 2006; Anker et al., 2006; Dworschak, 2006; Marin & Chan, 2006; Ahyong & Ng, 2007; Anker & Dworschak, There are currently 24 genera and 83 species in the xanthid 2007; Manuel-Santos & Ng, 2007; Mendoza & Ng, 2007; crab subfamily Euxanthinae worldwide, with most occurring Ng & Castro, 2007; Ng & Manuel-Santos, 2007; Ng & in the Indo-Pacifi c (Ng & McLay, 2007; Ng et al., 2008).
    [Show full text]
  • 17 the Crabs Belonging to the Grapsoidea Include a Lot Of
    17 SUPERFAMILY GRAPSOIDEA The crabs belonging to the Grapsoidea include a lot of ubiquitous species collected in the mangrove and/or along the coastline. As a result, most of the species listed here under the ‘Coastal Rock-rubble’ biotope of table 2b could be reasonably listed also with marine species. This is particularly true for the Grapsidae: Grapsus, Pachygrapsus, Pseudograpsus, and Thalassograpsus. FAMILY GECARCINIDAE Cardisoma carnifex (Herbst, 1796). Figure 12. – Cardisoma carnifex - Guinot, 1967: 289 (Checklist of WIO species, with mention of Grande Comore and Mayotte). - Bouchard, 2009: 6, 8, Mayotte, Malamani mangrove, 16 April 2008, St. 1, 12°55.337 S, 44°09.263 E, upper mangrove in shaded area, burrow, about 1.5 m depth, 1 male 61×74 mm (MNHN B32409). - KUW fieldwork November 2009, St. 6, Petite Terre, Badamiers spillway, upper littoral, 1 female 53×64 mm (MNHN B32410), 1 male 65×75.5 mm (MNHN B32411); St. 29, Ngouja hotel, Mboianatsa beach, in situ photographs only. Distribution. – Widespread in the IWP. Red Sea, Somalia, Kenya, Tanzania, Mozambique, South Africa, Europa, Madagascar, Comoros, Seychelles, Réunion, Mauritius, India, Taiwan, Japan, Australia, New Caledonia, Fiji, Wallis & Futuna, French Polynesia. Comment. – Gecarcinid land crabs are of large size and eaten in some places (West Indies, Wallis & Futuna, and French Polynesia). In Mayotte, however, they are not much prized for food and are not eaten. Figure 12. Cardisoma carnifex. Mayotte, KUW 2009 fieldwork: A) aspect of station 29, upper littoral Ngouja hotel, Mboianatsa beach; B) same, detail of a crab at the entrance of its burrow; C) St. 6, 1 female 53×64 mm (MNHN B32410); D) probably the same specimen, in situ at St.
    [Show full text]
  • Tf^A^(J€, W^ COLLINS-EVOLUTION of ANOMALOCARIS
    f ^v^ Tf^A^(j€, W^ COLLINS-EVOLUTION OF ANOMALOCARIS . 1911a. Middle Cambrian Merostomata. Cambrian geology and Middle Cambrian, Bxu^ess Shale, British Columbia. Philosophical paleontology II. Smithsonian Miscellaneous Collections, 57:17-40. Transactions of the Royal Society of London, B271:1-43. 1911b. Middle Cambrian Holothurians and Medusae. Cambrian , AND D. E. G. BRIGGS. 1982. A new conundrum from the Middle geology and paleontology II. Smithsonian Miscellaneous Collections, Cambrian Burgess Shale. Proceedings of the Third North American 57:41-68. Paleontological Convention, Montreal, 2:573-575. 1911c. Middle Cambrian Annelids. Cambrian geology and pa­ , AND . 1985. The largest Cambrian animal, Anomalocaris, leontology II. Smithsonian Miscellaneous Collections, 57:109-144. Burgess Shale, British Coliunbia. Philosophical Transactions of the . 1912. Middle Cambrian Branchiopoda, Malacostraca, Trilobita Royal Society of London, B309:569-609. and Merostomata. Cambrian geology and paleontology II. Smithson­ WOODWARD, H. 1902. The Canadian Rockies. Part I: On a collection ian Miscellaneous Collections, 57:145-228. of Middle Cambrian fossils obtained by Edward Whymper, Esq., WmxEAVES, J. F. 1892. Description of a new genus and species of F.R.G.S., from Mount Stephen, British Columbia. Geological Mag­ Phyllocarid Crustacea from the Middle Cambrian of Moimt Stephen, azine, 4(9):502-505, 529-544. B.C. Canadian Record of Science, 5:205-208. WHrmNGTON, H. B. 1975. The enigmatic animal Opabinia regalis, ACX:EPTED 8 AUGUST 1995 /. Paleont., 70(2), 1996, pp. 293-296 Copyright © 1996, The Paleontological Society O022-3360/96/OO70-0293$03.0O A NEW TETHYAN MIGRANT: CRETACHLORODIUS ENCIENSISN, GEN., N. SP. (CRUSTACEA, DECAPODA), FROM THE MAASTRICHTIAKT^YPE AREA RENEH.
    [Show full text]
  • Checklist of Brachyuran Crabs (Crustacea: Decapoda) from the Eastern Tropical Pacific by Michel E
    BULLETIN DE L'INSTITUT ROYAL DES SCIENCES NATURELLES DE BELGIQUE, BIOLOGIE, 65: 125-150, 1995 BULLETIN VAN HET KONINKLIJK BELGISCH INSTITUUT VOOR NATUURWETENSCHAPPEN, BIOLOGIE, 65: 125-150, 1995 Checklist of brachyuran crabs (Crustacea: Decapoda) from the eastern tropical Pacific by Michel E. HENDRICKX Abstract Introduction Literature dealing with brachyuran crabs from the east Pacific When available, reliable checklists of marine species is reviewed. Marine and brackish water species reported at least occurring in distinct geographic regions of the world are once in the Eastern Tropical Pacific zoogeographic subregion, of multiple use. In addition of providing comparative which extends from Magdalena Bay, on the west coast of Baja figures for biodiversity studies, they serve as an impor- California, Mexico, to Paita, in northern Peru, are listed and tant tool in defining extension of protected area, inferr- their distribution range along the Pacific coast of America is provided. Unpublished records, based on material kept in the ing potential impact of anthropogenic activity and author's collections were also considered to determine or con- complexity of communities, and estimating availability of firm the presence of species, or to modify previously published living resources. Checklists for zoogeographic regions or distribution ranges within the study area. A total of 450 species, provinces also facilitate biodiversity studies in specific belonging to 181 genera, are included in the checklist, the first habitats, which serve as points of departure for (among ever made available for the entire tropical zoogeographic others) studying the structure of food chains, the relative subregion of the west coast of America. A list of names of species abundance of species, and number of species or total and subspecies currently recognized as invalid for the area is number of organisms of various physical sizes (MAY, also included.
    [Show full text]