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Reptilia: Squamata: Sauria: Teiidae

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Reptilia: Squamata: Sauria: Teiidae n REPTILIA: SQUAMATA: SAURIA: TEIIDAE Catalogue of American Amphibians and Reptiles. Stuart. J.N. 1998. Cnernidophoru.~ve1o.x. Cnemidophorus velox Springer Plateau Striped Whiptail Lizard Cnemidophorus sexlineatus: Cope 1898 ( 1900):593 (part). Cnemidophorus gularis: Cary 19 1 1 :27 (part). Cnemidophorus gularis velox Springer 1928:102. Type locality, "Oraibi, Arizona, and ... Pueblo Bonito, New Mexico," desig- nated "Lee's Ferry, Arizona" (Barbour and Loveridge l946), restricted to "Oraibi, Navajo County, Arizona" (Lowe 1955). Lectotype, designated by Burt (193 I) as Butler Univ. No. 848, now accepted as Museum of Comparative Zoology, Harvard University (MCZ) 37208 following Barbour and Loveridge (1946), an adult female, collected by S.H. Springer, August 1928 (not examined by author). See Remarks. Cnemidophorus sexlineatus perplexus: Burt 193 1 : 122 (part). Cheniidophorus sexlineatus perplexus: Barry 1932:38 (part). Lapsus. Cnemidophorus gltlaris octolineatus: Smith 1946:409 (part). Cnemidophorus perplexus: Maslin 1950:9 1 (part). Cnemidophorus inornotus: Buger 1950:2 (part). Map. Distribution of Cnemidophorus velox. The circle indicates Cnemidophoms .radii innotatus: Burger 1950:4 (part). See the restricted type locality; dots mark other records. An Remarks. extralimital record in Oregon is not mapped. The question mark Cnemidophorus sacki innotatlrs: Schmidt 1953: 146 (part). Emendation. indicates an uncertain record. n Cnemidol?horrrs velox: Lowe 1955:4. First use of combination. Cnemidophonts vo1e.x: Taylor 1965: 1. Lupsus. vertebral stripe is most regularly seen in southern populations Cnemidophorus velox velox: Smith 1987: 126. See Remarks. where C. ve1o.r overlaps in distribution with C. mip par ens: how- ever, a complete or partial stripe is often present in some northern Content. No subspecies are recognized (but see Remarks). populations also); areas between dorsal stripes blackish-brown or black and without distinct spotting, although very faint, in- Definition. Cnernidophorus velox is a parthenogenetic species distinct spotting may be evident in the dorsolateral fields; venter complex of multiple hybrid origins within the sexlineatlis species white, often tinged with blue in life, and immaculate; distal two- group (senslr Duellman and Zweifel 1962, Lowe et al. 1970). thirds of tail light blue or greenish-blue. Scalation is as follows: which exhibits the following combination of characters: maxi- 4-16 interlabial scales (total, both sides of head; granular inter- mum SVL 87 mm; 6 complete and well-defined longitudinal labials typically lacking); usually 4 or more enlarged preanal light stripes; occasionally a 7th light vertebral stripe, less distinct scales; mesoptychial scales located immediately anterior to the than the others and often undulating or intermittent (a complete gular fold ab~vptlyenlarged and angular; postantebrachial scales Figure 1. C~~c~t~~itlol~kor.~rsve1o.r (74 rnm SVL) from Santn Fe. S;~nraIFc County, New blcxico (courresy of Ted L. Hro\\:n). Figure 2. Cri~~ilic/oplror~~.rl~clo.i- (SO mm SVL) t'l.orn Tecolote. San Misuel County, New Mexico (caul-tesy of Ted L. BI-own) abruptly enlarged; 63-85 granular scales around torso at mid- Descriptions. The best descriptions are in Lowe ( 1955), Wright body (GAB); 3-1 1 granular scales between the paravertebral (1966, 1968), and Taylor (1965); others are in Duellman and stripes (GBPS); supraorbital semicircle scales extend anteriorly Zweifel (1962), Wright and Lowe (1965). Stebbins (1985), no farther than the mid~ointof the 3rd su~raocularscale. The Hammerson (1982). and Degenhardt et al. (1996). Pennock color pattern of neonates and juveniles is similar to that of adults (1965, 1966) described the allotriploid karyotype (3n = 68). although tail coloration is a brighter blue or blue-green and mark- Identification keys that include this species were provided by ings on the dorsal surface of the hindlimbs are distinctly yellow. Wright (1968), Lowe et al. (1966), Vance (1978), and Degenhardt et al. (1996). Additional meristic and mensural data are in Maslin Diagnosis. The well-defined striped dorsal pattern and lack (1950), Gehlbach (1965). Taylor (1965), and Wright (1967). of distinct dorsal spots in C. velox will distinguish it from most other Cnernidophorus within its range. The species is Illustrations. Black-and-white photographs are in Duellman morphologically similar to two striped-unspotted congeners, C. and Zweifel (1962), Gehlbach (1965). Taylor (1965), Wright inornatus (gonochoristic; diploid) and C. uniparens (unisexual; and Lowe (1965), Lowe et al. (1966), Wright (1968). and Dessau- triploid); two or all three of these species occur in sympatry at er and Cole (1989). Color photographs or drawings are in Wauer many localities in New Mexico and Arizona (see Wright 1966, (1964), Behler and King (1979), Hammerson (1982), Smith and 1968; Degenhardt et al. 1996). Cnemidophorus inornatus differs Brodie (1982), Stebbins (1985). Livo (1992), Wright (1993), from C. velox in the following characteristics: presence of males; Williamson et al. (1994), Brown et al. (1995), and Degenhardt maximum reported SVL = 85 mm (males) although most C. et al. (1996). Woodbury (193 I) presented a photograph of an inomtus are <72 mm SVL; 6-8 light longitudinal stripes on individual with a bifurcated tail. Gehlbach (1965) illustrated an dorsum; extensive blue coloration on ventral surface of body ontogenetic series. Taylor et al. (1967) provided a photograph and on tail; 11-30 total interlabial scales (often in double rows); of a male subsequently determined to be a hybrid of C. velox mesoptychial and postantebrachial scales granular to slightly and C. rigris (Taylor et al. 1989). Wright (1966) illustrated gular enlarged; 52-78 GAB; 3-15 GBPS; supraorbital semicircle scutellation. Cuellar and Wright (1992) illustrated specimens scales extend anteriorly to make contact with the 4th supraocular used in a skin grafting experiment. Photographs of chromosomes scale. Cnemidophorus uniparens differs from C. velox as and the karyotype are in Pennock (1965). Line drawings of the follows: presence of only 6 complete longitudinal light stripes parietal eye-pineal morphology are in Gundy and Wurst (1976) where the geographic ranges of the two species approach or and of the internal ear structure in Wever (1978). Photographs overlap; lack of any spotting in the dorsal dark fields between of habitat are in Wauer (1964), Taylor (1965), Wright and Lowe stripes; an absence of ventral bluish coloration; 10-24 total (1968), Dessauer and Cole (1989), and Degenhardt et al. (1996). interlabial scales; usually only three (occasionally two) enlarged preanal scales; 59-78 GAB; 4-8 GBPS. Distribution. Cnernidophorus velox ranges from southern Utah The C. velox species complex (sensu Frost and Wright 1988, and southwestern Colorado southward to north-central and Wright 1993) is allotriploid, but one or more diploid forms have eastern Arizona and northern and western New Mexico where been included within the taxon (see Remarks). One of these it is associated with the Colorado Plateau and outlying mountain diploid forms, C. innotatus Burger, a seven-striped, unspotted ranges in the Lower Basin and Range region. The species occurs parthenospecies, may not bediagnosable at present using strictly primarily in Great Basin conifer woodlands (juniper-pinyon morphological characteristics. communities) and marginally in Rocky Mountain montane conifer forests (ponderosa pine communities), Great Basin desert Remarks. Springer (1928) failed to designate a holotype or a scrub (sagebrush-dominated communities), plains and Great specific type locality in his original description. Burt (1931) Basin grasslands (including juniper transition zones), and encinal subsequently designated Butler Univ. No. 848, one of Springer's communities of Madrean evergreen woodland and interior four cotypes, as the lectotype and provided a vague type locality chaparral (sensu Brown 1982). Riparian broadleaf forests in taken from Springer's (1928) account of the distribution. uplands are also inhabited. The primary elevations of occurrence Barbour and Loveridge (1946) reported the type locality for this are ca. 1800-2440 m, but these lizards also descend to ca. 1200 specimen as Lee's Ferry, a region (not the town) in northwestern m, such as along riparian corridors in the southern part of their Arizona defined by Springer (1928). Lowe's (1955) restriction range. Extralimital (apparently introduced) populations of C. of the type locality to Oraibi, Arizona, has been followed by velox occur at The Cove Palisades State Park, Jefferson County, most workers, although Maslin and Secoy (1986) argued for Oregon (Nussbaum et al. 1983, Stebbins 1985, Moritz et al. the validity of Pueblo Bonito (Chaco Culture National Historical 1989b), and possibly at Phoenix, Maricopa County, Arizona (L.J. Park, San Juan County), New Mexico (designated by Smith and Vitt, pers. comm. in Degenhardt et al. 1996). Taylor [1950a, b], as the type locality). Lowe (1955), Maslin (1959), Wright (1966), and Maslin and Secoy (1986) discussed Fossil Record. None. the history of the type designations. The unisexual status of C. velox was first reported by Pertinent Literature. Although the literature on systematics Duellman and Zweifel (1962) and Maslin (1962). Additional and taxonomy of C. velox is extensive (see Remarks), compre- evidence was provided by Gehlbach (1965), Maslin (1966), and hensive studies of natural history and ecology are lacking. A Cuellar (1968).
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