Elgaria multicarinata (BLAINVILLE, 1835)
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Higher Taxa | Anguidae (Gerrhonotinae), Diploglossa, Anguimorpha, Sauria, Squamata (lizards) |
Subspecies | Elgaria multicarinata multicarinata (BLAINVILLE,1835) Elgaria multicarinata ignava (VAN DENBURGH 1905) Elgaria multicarinata nana (FITCH 1934) Elgaria multicarinata scincicauda (SKILTON 1849) Elgaria multicarinata webbii (BAIRD 1859) |
Common Names | E: Southern Alligator Lizard G: südliche Alligatorschleiche multicarinata: California Alligator Lizard scincicauda: Oregon Alligator Lizard webbii : San Diego Alligator Lizard ignava: San Martin Alligator Lizard nana: Los Coronados Alligator Lizard S: Lagarto Meridional |
Synonym | Cordylus (Gerhonotus) multi-carinatus BLAINVILLE 1835: 289 Gerrhonotus multicarinatus — DUMÉRIL & BIBRON 1839: 404 Gerrhonotus multicarinatus — VAN DENBURGH 1898: 64 Gerrhonotus multicarinatus multicarinatus — SMITH 1946 Gerrhonotus multicarinatus — BRADLEY & DEACON 1966 Gerrhonotus multicarinatus — WERMUTH 1969: 24 Gerrhonotus multicarinatus — KAHL et al. 1980: 189 Gerrhonotus multicarinatus — STEBBINS 1985: 164 Elgaria multicarinata — GOOD 1988: 75 Elgaria multicarinata — LINER 1994 Elgaria multicarinata — PIANKA & VITT 2003: 227 Elgaria multicarinata multicarinata — COLLINS & TAGGART 2009 Elgaria multicarinata ignava (VAN DENBURGH 1905) Gerrhonotus scincicauda ignava VAN DENBURGH 1905 Gerrhonotus scincicauda ignavus — VAN DENBURGH 1912 Gerrhonotus multicarinatus ignavus — ZWEIFEL 1958 Elgaria multicarinata nana (FITCH 1934) Gerrhonotus scincicauda nanus FITCH 1934: 7 Gerrhonotus multi-carinatus nanus FITCH 1934 Gerrhonotus multi-carinatus nanus — FITCH 1938 Elgaria multicarinata nana — TIHEN 1949: 596 Elgaria multicarinata nana — SMITH & TAYLOR 1950: 207 Gerrhonotus multicarinatus nanus — WERMUTH 1969: 24 Elgaria multicarinata nana — CROTHER 2000 Elgaria nana — GRISMER 2001 Elgaria nana — LEMOS-ESPINAL 2015 Elgaria nana — JOHNSON et al. 2017 Elgaria multicarinata — LEAVITT et al. 2017 Elgaria nana — PERALTA-GARCÍA et al. 2023 Elgaria multicarinata scincicauda (SKILTON 1849) Tropidolepis scincicauda SKILTON 1849: 202 Tropidolepis sincicauda [sic] — SKILTON 1849: plate Elgaria grandis BAIRD & GIRARD 1852: 176 Gerrhonotus (Elgaria) scincicauda — O’SHAUGHNESSY 1873: 47 Gerrhonotus scincicauda — STEJNEGER 1893: 195 Gerrhonotus scincicauda — VAN DENBURGH 1895: 120 Gerrhonotus scincicauda — VAN DENBURGH 1912: 157 Gerrhonotus multicarinatus scincicauda — FITCH 1936 Gerrhonotus multicarinatus scincicauda — SMITH 1946 Gerrhonotus multicarinatus scincicauda — WERMUTH 1969: 24 Gerrhonotus multicarinatus scincicauda — STEBBINS 1985: 165 Gerrhonotus multicarinatus scincicauda — CROTHER 2000 Gerrhonotus multicarinatus scincicauda — COLLINS & TAGGART 2009 Elgaria multicarinata webbii (BAIRD 1859) Gerrhonotus webbii BAIRD 1859: 255 Gerrhonotus Webbii — O’SHAUGHNESSY 1873: 46 Gerrhonotus webbii — GÜNTHER 1885: 35 Gerrhonotus scincicauda ignavus VAN DENBURGH 1905: 19 Gerrhonotus scincicauda webbii — GRINNELL & CAMP 1917: 168 Gerrhonotus scincicauda webbii — KLAUBER 1928 Gerrhonotus scincicauda webbii — GANDER 1931 Gerrhonotus scincicauda webbii — BURT 1933 Gerrhonotus multi-carinatus webbii — FITCH 1938: 395 Gerrhonotus multicarinatus webbi — SMITH 1946 Elgaria multicarinata webbii — TIHEN 1949: 596 Elgaria multicarinata webbii — CUNNINGHAM 1956 Gerrhonotus multicarinatus webbi — CUNNINGHAM 1966 Gerrhonotus multicarinatus webbii — WERMUTH 1969: 25 Gerrhonotus multicarinatus webbii — STEBBINS 1985: 165 Gerrhonotus multicarinatus webbii — CROTHER 2000 Elgaria multicarinata webbii — COLLINS & TAGGART 2009 Elgaria multicarinata webbii — WERNING 2013 Elgaria multicarinata webbii — BARTS 2018 |
Distribution | USA (Washington, Oregon, California, Nevada), Mexico (Baja California) ignava: San Martin Island, Baja California nana: Los Coronados Island, Baja California; Type locality: South island, Los Coronados Island, Baja California. scincicauda: USA (Oregon); Type locality: “country about the Dalles of the Columbia” webbii: S California, N Baja California. Type locality: “San Diego to El Paso”. Restrcited to San Diego, California, by SMITH & TAYLOR 1950. |
Reproduction | oviparous; genetic sex determination (GSD) although some sources also reported Temperature‐dependent sex determination (TSD), e.g. Cornejo-Páramo et al. 2020, citing Goldberg 1972. |
Types | Holotype: MNHN-RA 2002, 228 (130) mm Holotype: USNM 9057 [Elgaria grandis] Holotype: CAS 4699 [ignava] Holotype: MVZ (Mus. Vert. Zool.) UC 5402 [nana] Holotype: USNM 3078 (collected by T.H. Webb) [webbii] |
Diagnosis | Diagnosis (genus): Good 1988: 71, but note that the concept (and content) of Elgaria in Good 1988 was different than today. Ledesma et al. 2021 found that no skull characters are reliably diagnostic for Elgaria (or Gerrhonotus). Additional details (2605 characters) are available for collaborators and contributors. Please contact us for details. |
Comment | Type Species: Cordylus (Gerhonotus) multi-carinatus BLAINVILLE 1835 is the type species of the genus Elgaria GRAY 1838. Distribution: see map in Leavitt et al. 2017: Fig. 1. Predation: this species seems to have developed some resistance to black widow spider venom (Thill et al. 2022). Synonymy: Leavitt et al. 2017 consider nana as conspecific with multicarinatus; one DNA sample nested within multicarinatus. |
Etymology | Named after Latin multi, many things (pl.); much; many + Latin carinata, keeled, ridged. [“...Écailles dorsales sur le corps et sur la queue, toutes carénées, et disposées de manière à former quatre paires de lignes carénées dans toute l'étendue du corps...”]. E. m. ignava was named after Latin ignava, nactive, lazy, slothful, idle, sluggish, listless, without spirit, cowardly, dastardly. [?]. E. m. nana was named after Latin nana, dwarf. ["...ize small (maximum head and body length among 79 specimens 114 mm., average 93.3 among 49 evidently adult)..."]. E. m. scincicauda was named after Latin Scincus, a lizard genus due to Laurenti, 1768 + Latin cauda, tail. ["…The size of the tail at its origin, from its resemblance to that of the skink, furnishes a strong specific character...”]. E. m. webbii was named after Robert Gravem Webb (1927-2018), US American herpetologist. The genus was apparently named after the Old English word elger, meaning "eel-spear," in reference to the elongate body and tail characteristic of the genus. (Lemoas-Espinal et al. 2019) |
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