Aspidoscelis exsanguis (LOWE, 1956)
Can you confirm these amateur observations of Aspidoscelis exsanguis?
|Higher Taxa||Teiidae, Teiinae, Gymnophthalmoidea, Sauria, Squamata (lizards)|
|Common Names||Chihuahuan Spotted Whiptail|
|Synonym||Cnemidophorus sacki exsanguis LOWE 1956|
Cnemidophorus costatus exsanguis — MASLIN 1962: 212 (part.)
Cnemidophorus exsanguis — STEBBINS 1985: 157
Cnemidophorus exsanguis — MASLIN & SECOY 1986
Cnemidophorus exsanguis — CONANT & COLLINS 1991: 120
Cnemidophorus exsanguis — LINER 1994
Aspidoscelis exsanguis — REEDER et al. 2002
Aspidoscelis exsanguis — COOPER et al. 2005
Aspidoscelis exsanguis — COLLINS & TAGGART 2009
Aspidoscelis neavesi COLE, TAYLOR, BAUMANN & BAUMANN 2014 (part)
|Distribution||USA (SE Arizona, New Mexico, SW Texas), |
Mexico (N Chihuahua, NE Sonora); elevation 760-2440 m.
Type locality: “Socorro, Socorro County, New Mexico”. Map legend:
- Region according to the TDWG standard, not a precise distribution map.
NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
|Reproduction||This species originated through hybridization involving 3 species: C. inornatus, C. septemvittatus, and C. costatus (fide STEBBINS 1985). Parthenogenetic species. Lutes et al. (2011) report the generation of four self-sustaining clonal lineages of a tetraploid species resulting from fertilization of triploid oocytes from a parthenogenetic Aspidoscelis exsanguis with haploid sperm from Aspidoscelis inornata.<br /><br />Aspidoscelis neavesi is a parthenogenetic, synthetic organism that originated through hybridization between Aspidoscelis exsanguis (triploid parthenogen) x Aspidoscelis inornata (diploid bisexual or gonochoristic species) in the laboratory. Given that it is a synthetic organism that did not evolve naturally, we do not list it as valid species for the time being, a decision supported by the scientific advisory board of the database.|
|Types||Holotype: UAZ, University of Arizona, UAA 16188 (formerly Unlverslty of California, Los Angeles, Dept. of Zoology 3737), collected by Richard Zweifel and Kenneth S. norris, 10 Aug 1948.|
Holotype. MCZ R-192219 (5 SIMR 8093), a cloned adult female of the F2 laboratory reared generation that also cloned herself at the SIMR. She hatched on August 13, 2008, and her mother was MCZ R-192209 (=SIMR 4919) [neavesi]
|Comment||Before LOWE described Cnemidophorus sacki exsanguis, specimens of it have been assigned to Cnemidophorus gularis, C. sexlineatus, or C. sackii.|
Diagnosis (neavesi). A species of the Aspidoscelis sexlineata species group as reviewed by Lowe et al. (1970b). The species is distinguished from all others in the genus by the following combination of characters: abruptly enlarged mesoptychials; enlarged postantebrachials; 2 frontoparietals; usually 3 parietals; 4 supraoculars each side; unisexual (only females exist); body with 6 longitudinal pale stripes that fade and can disappear in large adults; hatchlings basically unspotted but adults with pale dots and spots on body; maximum snout-vent length (SVL) about 80 mm; tetraploid number of chromosomes about 91, with 4 haploid sets of the sexlineata species group, including the slightly modified triploid karyotype of some A. exsanguis from Alamogordo (Lutes et al., 2011), and the 3 largest chromosomes being metacentric.
|Etymology||The name exsanguis (Latin, “without blood”), referes to the distinct difference between this species and C. burti stictogrammus, with which it was formerly inlcuded.|
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