Sceloporus hesperus BRYSON & GRUMMER, 2021
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Sceloporus hesperus
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| Higher Taxa | Phrynosomatidae, Sceloporinae, Iguania, Sauria, Squamata (lizards) |
| Subspecies | |
| Common Names | |
| Synonym | Sceloporus hesperus BRYSON & GRUMMER 2021 Sceloporus hesperus — HEIMES 2022 |
| Distribution | Mexico (Jalisco) Type locality: 2.2 km (by air) SE Lago de Juanacatlán, Sierra de Mascota, municipality of Mascota, Jalisco (N 20.6102°, W 104.7208°, 2314 m; WGS84) |
| Reproduction | |
| Types | Holotype: MZFC 35571, adult male (field number RWB 1107), collected 10 April 2011 by R. W. Bryson Jr. and M. Torocco. Paratypes: Same data as holotype (MZFC 35572–35575). |
| Diagnosis | Diagnosis: Sceloporus hesperus is a member of the S. scalaris group, sharing with other species in that group parallel lateral scale rows, femoral pore series that are either in contact or separated by no more than two scales, females with smooth preanal scales, and males with lateral abdominal color patches (Smith 1939; Smith et al. 1997; Watkins-Cowell et al. 2006). Sceloporus hesperus can be distinguished from other species in this group by the following combination of characters: single canthal on each side of the head, small adult size (SVL less than 47 mm, average 45.4 mm), 41–47 dorsal scales (average 43), 40–45 scales around midbody (average 43), 37–39 ventral scales (average 38), tibia length/head length proportion of 0.75–0.89 (average 0.84), 11–17 scales bordering the interpariatel scale (average 14), adult females with lightly mottled or pale venters, and adult males with extensive dark pigment on the venter, heavily mottled throats, and orange or rust-colored flanks (BRYSON & GRUMMER 2021). |
| Comment | Distribution: see Bryson & Grummer 2021: 342 (Fig. 2) for a (rough) map, as “Sierra de Mascota” (not hesperus). |
| Etymology | The specific epithet is derived from the Greek word hesperos, meaning “western”, and is used in reference to the type locality located at the far western end of the Trans-Mexican Volcanic Belt. |
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