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Citation: Midtgaard, Rune. RepFocus - A Survey of the Reptiles of the World. (www.repfocus.dk).
Latest update: December 31st, 2022.

Taxonomy of the family Xantusiidae
Bibliography of the genus Xantusia
Biodiversity of the family Xantusiidae


Northern Night Lizards, True Night Lizards

Nördliche Nachtechsen

Nordlige Natøgler

1859 Xantusia Baird (type species: Xantusia vigilis Baird 1859)
1895 Amoebobsis Cope (type species: Xantusia gilberti Van Denburgh 1895; syn. Wermuth 1965)
1895 Zablepsis Cope (type species: Xantusia henshawi Stejneger 1893; syn. Wermuth 1965)
1957 Klauberina Savage (type species: Xantusia riversiana Cope 1884)

Contents: 14 species, of which 11 (78.6%) are endemic.
Endemism: 0% 100%
Remarks: Includes Klauberina, previously regarded as a separate genus (e.g., Savage 1957; Wermuth 1965).
Distribution: NW. Mexico, SW. USA.
Reported from: Mexico (Baja California Norte, Baja California Sur, Coahuila, Durango, Jalisco, Sonora, Zacatecas), USA (Arizona, California [incl. Channel Islands], Nevada, Utah).

Xantusia arizonae

Arizona Night Lizard



1931 Xantusia arizonae Klauber
Xantusia vigilis arizonae Bezy 1967

Remarks: Revalidated as a separate species by Papenfuss, Macey & Schulte (2001) and Leavitt, Bezy, Crandall & Sites (2007). Not listed by Brennan & Holycross (2006), who may have retained it as a subspecies of vigilis, as did Crother, Boundy & al. (2003).
Distribution: USA (Arizona).

Xantusia bezyi

Maricopa Night Lizard, (Bezy's Night Lizard)



2001 Xantusia bezyi Papenfuss, Macey & Schulte

Distribution: USA (Arizona).

Xantusia bolsonae

Bolson Night Lizard



1970 Xantusia henshawi bolsonae Webb
Xantusia bolsonae Bezy & Sites 1987

Distribution: Mexico (Durango).

Xantusia extorris

Durangan Night Lizard



1965 Xantusia extorris Webb
Xantusia vigilis extorris Webb 1970

Remarks: Revalidated as a separate species by Campos, Ortega, Gonzalez & Smith (2001).
Distribution: Mexico (Coahuila, Durango, Zacatecas).

Xantusia gilberti

San Lucan Night Lizard, (Baja California Night Lizard)

San Lucas-Nachtechse

San Lucas-natøgle

1895 Xantusia gilberti Van Denburgh
Xantusia vigilis gilberti Savage 1952

Remarks: Revalidated as a separate species by Sinclair, Bezy, Bolles, Camarillo-Rangel, Crandall & Sites (2004).
Distribution: Mexico (Baja California Sur).

Xantusia gracilis

Sandstone Night Lizard



1986 Xantusia henshawi gracilis Grismer & Galvan
Xantusia gracilis Vicario, Caccone & Gauthier 2003

Distribution: USA (California).

Xantusia henshawi

Granite Night Lizard, (Henshaw's Night Lizard)



1893 Xantusia henshawi Stejneger
Zablepsis henshavii Cope 1895
1895 Xantusia picta Cope (Klauber 1931)

Remarks: Previously included bolsonae and gracilis (e.g., Stebbins 1985).
Distribution: Mexico (Baja California Norte), USA (California).

Xantusia jaycolei

Sonora Night Lizard, (Cole's Night Lizard)



2008 Xantusia jaycolei Bezy, Bezy & Bolles

Distribution: Mexico (Sonora).

Xantusia riversiana

Island Night Lizard



1884 Xantusia riversiana Cope
Klauberina riversiana Savage 1957
1946 Xantusia riversiana reticulata Smith
Klauberina riversiana reticulata Savage 1957

Other common names:
reticulata: San Clemente Night Lizard
riversiana: San Nicolas Night Lizard
Distribution: USA (California: Channel Islands).

Xantusia sanchezi

Zacatecas Night Lizard, Southern Plateau Night Lizard, (Sanchez' Night Lizard)



1999 Xantusia sanchezi Bezy & Flores-Villela

Distribution: Mexico (Jalisco, Zacatecas).

Xantusia sherbrookei

La Poza Grande Night Lizard, (Sherbrooke's Night Lizard)

La Poza Grande-Nachtechse

La Poza Grande-natøgle

2008 Xantusia sherbrookei Bezy, Bezy & Bolles

Distribution: Mexico (Baja California Sur).

Xantusia sierrae

Sierra Night Lizard

Kalifornische Gebirgsnachtechse

Californisk Bjergnatøgle

1967 Xantusia vigilis sierrae Bezy
Xantusia sierrae Bezy, Bezy & Bolles 2008

Distribution: USA (California).

Xantusia vigilis

Desert Night Lizard, Yucca Night Lizard

Yucca-Nachtechse, Wüsten-Nachtechse, Kleine Nachtechse


1859 Xantusia vigilis Baird
1957 Xantusia vigilis utahensis Tanner
Xantusia utahensis Collins 1991

Other common names:
utahensis: Utah Night Lizard
vigilis: Common Desert Night Lizard
Remarks: The species arizonae, extorris, gilberti, sierrae, and wigginsi were previously regarded as subspecies of vigilis. Records of vigilis from Mexico refer to other species. Collins (1991) also suggested recognition of utahensis as a separate species, but later relisted it as a subspecies of vigilis (Collins 1997).
Distribution: Mexico (Sonora), USA (Arizona, California, Nevada, Utah).

Xantusia wigginsi

Baja California Night Lizard, (Wiggins' Desert Night Lizard)

Niederkalifornische Nachtechse

Baja California-natøgle

1952 Xantusia vigilis wigginsi Savage
Xantusia wigginsi Sinclair, Bezy, Bolles, Camarillo-Rangel, Crandall & Sites 2004

Distribution: Mexico (Baja California Norte, Baja California Sur), USA (California).