Crotaphytus vestigium SMITH & TANNER, 1972
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Crotaphytus vestigium
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| Higher Taxa | Crotaphytidae, Iguania, Sauria, Squamata (lizards) |
| Subspecies | |
| Common Names | E: Baja Black-collared Lizard S: Cachorón de Baja California |
| Synonym | Crotaphytus fasciatus MOCQUARD 1899: 303 (invalid) Crotaphytus fasciolatus MOCQUARD 1903 (nom. subst.) Crotaphytus insularis vestigium SMITH & TANNER 1972: 29 Crotaphytus insularis vestigium — STEBBINS 1985: 122 Crotaphytus vestigium — LINER 1994 Crotaphytus vestigium — LINER 2007 Crotaphytus vestigium — IVANYI in JONE S& LOVICH 2009: 112 Crotaphytus vestigium — HEIMES 2022 |
| Distribution | USA (California), Mexico (Baja California) Type locality: "Guadelupe Canyon, Juarez Mountains, Baja California". |
| Reproduction | oviparous |
| Types | Holotype: BYU 23338 (Brigham Young University) |
| Diagnosis | Diagnosis: Crotaphyfus sestigium can be distinguished from all other Crotaphytusexcept C. insularis and C. rericulatus by the presence of widely separated posterior collars. It can be distinguished from all other speciesof Crotaphytusby the presence of slender, white transverse dorsal body bars. It can be further distinguished from C. reficulatus.C. collaris, C . nebrius, and C . dickersonae by the absence of black oral melanin. It can be further distinguished from C. reticulatus, C. collaris, and C. nebrius by the presence in adult males of a strongly laterally compressed tail, a white or off-white dorsal caudal stripe, a pale tan or white patternless region on the dorsal surface of the head, and enlarged dark brown or black inguinal patches (rather than the small inguinal patches of C. nebrilrs and some C. collaris). It can be distinguished from C. antiqutts and further distinguished from C. retic~rlatusin the absence of a dorsal pattern composed ofa white reticulum with some or all of the reticulations enclosing black pigmentation. It can be further distinguished from C. grismeri by the absence ofa greenish tint to the white bar that separates the anterior and posterior collars, by the hindlimb pattern consisting of white reticulations or spots on a brown field (field occasionally yellowish distal to the knee), by the presence ofolive green or burnt orange ventrolateral coloration, and by its much larger maximum adult SVL. It can be distinguished from C.insularis by its broader nasal process of the premaxilla and its more strongly developed posterior collar (McGuire 1996: 95). |
| Comment | Synonymy: Crotaphytus fasciatus MOCQUARD 1899 is a junior primary homonym of Crotaphytus fasciatus HALLOWELL 1853, which itself is a junior synonym of C. wislizenii BAIRD & GIRARD 1852 (now Gambelia). Hence MOCQUARD replaced the name by C. fasciolatus. The correct name for this taxon is therefore C. fasciolatus. The name Crotaphytus fasciolatus has been treated as a junior synonym of C. wislizenii, but has never been used for the species for which it was established (McGuire 2000). Crotaphytus insularis vestigium has been granted precedence over Crotaphytus fasciolatus Mocquard, 1903, by action of the ICZN (Anonymous, Bull. Zool. Nomencl., 59: 228-229). |
| Etymology | From the Latin vestigium, a footprint, a track, a trace. In reference to the reduced collars of this species (Tanner, personal communication, 1993, cited in McGuire 1996: 95). |
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