Citation: Midtgaard, Rune. RepFocus - A Survey of the Reptiles of the World. (www.repfocus.dk).
Latest update: December 31st, 2022.
 
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Genus
Elgaria
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Western Alligator Lizards
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Westliche Alligatorschleichen
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Vestlige Alligatorøgler
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1838 |  |
Elgaria Gray (type species: Cordylus multi-carinatus Blainville 1835) |
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1843 | |
Trachypeltis Fitzinger (type species: Cordylus multi-carinatus Blainville 1835; syn. Good 1988) |
Contents:
8 species, of which 5 (62.5%) are endemic.
Endemism: 0%  100%
Remarks:
Previously included in
Gerrhonotus (se remarks under that genus).
Distribution:
W. North America.
Reported from:
Canada
(British Columbia
[incl.
Vancouver Island]),
Mexico
(Aguascalientes,
Baja California Norte
[incl.
Isla Cedros,
Islas Coronados
(Isla Coronado Norte,
Isla Coronado Sur)],
Baja California Sur,
Chihuahua,
Colima,
Durango,
Jalisco,
Michoacan,
Nayarit,
Sinaloa,
Sonora,
Zacatecas),
USA
(Arizona,
California
[incl.
Channel Islands],
Idaho,
Montana,
Nevada,
New Mexico,
Oregon,
Washington).
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Elgaria cedrosensis
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Cedros Island Alligator Lizard
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Cedros-Alligatorschleiche
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Cedros-alligatorøgle
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1934 | |
Gerrhonotus cedrosensis Fitch |
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Elgaria cedrosensis Tihen 1949 |
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Elgaria paucicarinata cedrosensis Grismer 1988 |
Remarks:
Revalidated as a separate species by Grismer & Hollingsworth (2001).
Distribution:
Mexico
(Baja California Norte
[incl.
Isla Cedros]).
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Elgaria coerulea
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Northern Alligator Lizard
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Nördliche Alligatorschleiche
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Nordlig Alligatorøgle
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1828 | |
Gerrhonotus coeruleus Wiegmann |
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Elgaria coerulea Tihen 1949 |
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1831 | |
Gerrhonotus burnettii Gray (Schmidt 1953) |
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1852 | |
Elgaria formosa Baird & Girard (Schmidt 1953) |
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1852 | |
Elgaria principis Baird & Girard (Wermuth 1969) |
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Gerrhonotus coeruleus principis Fitch 1934 |
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Elgaria coerulea principis Tihen 1949 |
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1885 | |
Gerrhonotus caeruleus Boulenger [substitute name for Gerrhonotus coeruleus Wiegmann 1828] (Wermuth 1969) |
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1893 | |
Gerrhonotus scincicauda palmeri Stejneger (Wermuth 1969) |
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Gerrhonotus coeruleus palmeri Fitch 1934 |
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Elgaria coerulea palmeri Tihen 1949 |
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1934 | |
Gerrhonotus coeruleus shastensis Fitch |
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Elgaria coerulea shastensis Tihen 1949 |
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1945 | |
Gerrhonotus coeruleus utahensis Tihen |
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Elgaria utahensis Tihen 1949 |
Other common names:
coerulea: San Francisco Alligator Lizard
palmeri: Sierra Alligator Lizard
principis: Northwestern Alligator Lizard
shastensis: Shasta Alligator Lizard
Distribution:
Canada
(British Columbia
[incl.
Vancouver Island]),
USA
(California,
Idaho,
Montana,
Nevada,
Oregon,
Washington).
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Elgaria kingii
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Madrean Alligator Lizard, Sonoran Alligator Lizard
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Mexikanische Alligatorschleiche, Arizona-Alligatorschleiche
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Sonora-alligatorøgle
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1838 | |
Elgaria kingii Gray |
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Gerrhonotus kingii O'Shaughnessy 1873 |
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1839 | |
Gerrhonotus multifasciatus Duméril & Bibron (Tihen 1948) |
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1852 | |
Elgaria marginata Hallowell (Tihen 1948) |
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1852 | |
Elgaria nobilis Baird & Girard (Wermuth 1969) |
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Elgaria kingii nobilis Tihen 1949 |
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1962 | |
Gerrhonotus kingi ferrugineus Webb |
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Elgaria kingi ferruginea Liner 1994 |
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2003 | |
Elgaria usafa Smith, Lemos-Espinal, Chiszar & Ingrasci (Bryson, Smith & Lemos-Espinal 2005; Lemos-Espinal & Smith 2007) |
Other common names:
ferruginea: Rusty Alligator Lizard
kingi: Common Madrean Alligator Lizard
nobilis: Arizona Alligator Lizard
Distribution:
Mexico
(Aguascalientes,
Chihuahua,
Colima,
Durango,
Jalisco,
Michoacan,
Nayarit,
Sinaloa,
Sonora,
Zacatecas),
USA
(Arizona,
New Mexico).
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Elgaria multicarinata
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Southern Alligator Lizard
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Südliche Alligatorschleiche
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Sydlig Alligatorøgle
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1835 | |
Cordylus multi-carinatus Blainville |
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Gerrhonotus multi-carinatus Fitch 1934 |
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Elgaria multicarinata Tihen 1949 |
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1845 | |
Gerrhonotus wiegmanni Gray [ex errore] (Schmidt 1953) |
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1849 | |
Tropidolepis scincicauda Skilton (Wermuth 1969) |
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Gerrhonotus multi-carinatus scincicauda Fitch 1934 |
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Elgaria multicarinata scincicauda Tihen 1949 |
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1852 | |
Elgaria grandis Baird & Girard (Schmidt 1953) |
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1858 | |
Gerrhonotus webbii Baird (Wermuth 1969) |
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Gerrhonotus multi-carinatus webbi Fitch 1934 |
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Elgaria multicarinata webbi Smith & Taylor 1950 |
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1905 | |
Gerrhonotus scincicauda ignavus Van Denburgh (Grismer 2001) |
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Gerrhonotus multicarinatus ignavus Zweifel 1958 |
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Elgaria multicarinata ignava Liner 1994 |
Other common names:
ignava: San Martin Alligator Lizard
multicarinata: California Alligator Lizard
scincicauda: Oregon Alligator Lizard
webbi: San Diego Alligator Lizard
Remarks:
Previously included nana.
Introduced to:
USA
(Nevada).
Distribution:
Mexico
(Baja California Norte),
USA
(California
[incl.
Channel Islands],
Oregon,
Washington).
|
Elgaria multicarinata
© Rune Midtgaard
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Elgaria nana
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Los Coronados Alligator Lizard
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Coronados-Alligatorschleiche
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Coronados-alligatorøgle
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1934 | |
Gerrhonotus scincicauda nanus Fitch |
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Gerrhonotus multi-carinatus nanus Fitch 1939 |
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Elgaria multicarinata nana Tihen 1949 |
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Elgaria nana Grismer 2001 |
Remarks:
Sometimes regarded as a subspecies of multicarinata (e.g., Wermuth 1969: Leavitt, Marion, Hollingsworth & Reeder 2017).
Distribution:
Mexico
(Baja California Norte
[Islas Coronados
(Isla Coronado Norte,
Isla Coronado Sur)]).
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Elgaria panamintina
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Panamint Alligator Lizard
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Panamint-Alligatorschleiche
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Panamint-alligatorøgle
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1958 | |
Gerrhonotus panamintinus Stebbins |
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Elgaria panamintina Waddick & Smith 1974 |
Distribution:
USA
(California).
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Elgaria paucicarinata
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San Lucan Alligator Lizard
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San Lucas-Alligatorschleiche
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San Lucas-alligatorøgle
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1934 | |
Gerrhonotus paucicarinatus Fitch |
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Elgaria paucicarinata Tihen 1949 |
Remarks:
Previously included cedrosensis (e.g., Grismer 1988).
Distribution:
Mexico
(Baja California Sur).
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Elgaria velazquezi
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Central Baja California Alligator Lizard, Central Peninsular Alligator Lizard
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Zentral-Niederkalifornische Alligatorschleiche
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Baja California-alligatorøgle
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2001 | |
Elgaria velazquezi Grismer & Hollingsworth |
Distribution:
Mexico
(Baja California Sur).
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