Home - Taxonomy - Geography - Biodiversity - Literature - Purchase RepFocus Recent updates

© Rune Midtgaard


Taxonomy of the family Xenosauridae
Bibliography of the genus Xenosaurus
Biodiversity of the genus Xenosaurus




Genus
Xenosaurus

Knob-scaled Lizards, Mexican Knob-scaled Lizards, American Knob-scaled Lizards

Höckerechsen

Mexicanske Spalteøgler*

1861 Xenosaurus Peters (type species: Xenosaurus fasciatus Peters 1861)

Contents: 13 species.
Distribution: Mexico, Guatemala.
Reported from: Guatemala, Mexico (Chiapas, Guerrero, Hidalgo, Oaxaca, Puebla, Queretaro, San Luis Potosi, Tamaulipas, Veracruz).

Xenosaurus agrenon

Mountain Knob-scaled Lizard

Gebirgs-Höckerechse*

Bjerg-spalteøgle*

1968 Xenosaurus grandis agrenon King & Thompson
Xenosaurus agrenon Woolrich-Piña & Smith 2012

Remarks: Previously regarded as a subspecies of grandis (e.g., Liner 2007), but as a separate species in recent works (e.g., Bhullar 2011; Woolrich-Piña & Smith 2012; Nieto-Montes de Oca, Barley, Meza-Lazáro, García-Vázquez, Zamora-Abrego, Thomson & Leaché 2017).
Distribution: Mexico (Oaxaca, Puebla).


Xenosaurus arboreus

Arboreal Knob-scaled Lizard

Baum-Höckerechse*

Træ-spalteøgle*

1965 Xenosaurus arboreus Lynch & Smith
Xenosaurus grandis arboreus King & Thompson 1968

Remarks: Previously regarded as a subspecies of grandis. Revalidated as a separate species by Canseco-Márquez (2005), followed by others (e.g., Bhullar 2011; Nieto-Montes de Oca, García-Vázquez, Zúñiga-Vega & Schmidt-Ballardo 2013; Nieto-Montes de Oca, Barley, Meza-Lazáro, García-Vázquez, Zamora-Abrego, Thomson & Leaché 2017), although Woolrich-Piña & Smith (2012) retained it as a subspecies of grandis, but without discussion.
Distribution: Mexico (Oaxaca).


Xenosaurus fractus

Huehuetla Knob-scaled Lizard

Huehuetla-Höckerechse*

Huehuetla-spalteøgle*

2018 Xenosaurus fractus Nieto-Montes de Oca, Sánchez-Vega & Durán-Fuentes

Distribution: Mexico (Puebla).





Xenosaurus grandis

Common Knob-scaled Lizard, Oaxacan Rock Lizard, Mexican Knob-scaled Lizard

Gewöhnliche Höckerechse

Almindelig Spalteøgle*

1856 Cubina grandis Gray
Xenosaurus grandis Cope 1866
1861 Xenosaurus fasciatus Peters (Boulenger 1885)

Remarks: Previously included agrenon, arboreus, rackhami, and sanmartinensis.
Distribution: Mexico (Oaxaca, Veracruz).


Xenosaurus mendozai

Queretaro Knob-scaled Lizard*

Queretaro-Höckerechse*

Queretaro-spalteøgle*

2013 Xenosaurus mendozai Nieto-Montes de Oca, García-Vázquez, Zúñiga-Vega & Schmidt-Ballardo

Distribution: Mexico (Hidalgo, Queretaro).


Xenosaurus newmanorum

San Luis Potosí Knob-scaled Lizard*, (Newman's Knob-scaled Lizard)

San Luis Potosí-Höckerechse*

San Luis Potosí-spalteøgle*

1949 Xenosaurus newmanorum Taylor
Xenosaurus grandis newmanorum Lynch & Smith 1965

Remarks: Revalidated as a separate species by King & Thompson (1968). A record from Veracruz (Camarillo-Rangel 1998) refer to tzacualtipantecus (Woolrich-Piña & Smith 2012). Wermuth's (1969) inclusion of Tamaulipas in the distribution is probably based on Martin (1958), which refer to platyceps (King & Thompson 1968).
Distribution: Mexico (Hidalgo, San Luis Potosi).


Xenosaurus penai

Guerreran Knob-scaled Lizard*, (Pena's Knob-scaled Lizard)

Guerrero-Höckerechse*

Guerrero-spalteøgle*

2000 Xenosaurus penai Pérez-Ramos, Saldaña de la Riva & Campbell

Distribution: Mexico (Guerrero).


Xenosaurus phalaroanthereon

Chin-spotted Knob-scaled Lizard

Kinnfleckiger Höckerechse*

Hageplettet Spalteøgle*

2001 Xenosaurus phalaroanthereon Nieto-Montes de Oca, Campbell & Flores-Villela

Distribution: Mexico (Oaxaca).


Xenosaurus platyceps

Flat-headed Knob-scaled Lizard

Flachkopf-Höckerechse*

Fladhovedet Spalteøgle*

1968 Xenosaurus platyceps King & Thompson

Distribution: Mexico (Tamaulipas).


Xenosaurus rackhami

Chiapan Knob-scaled Lizard*, (Rackham's Knob-scaled Lizard)

Chiapas-Höckerechse*

Chiapas-spalteøgle*

1941 Xenosaurus rackhami Stuart
Xenosaurus grandis rackhami Lynch & Smith 1965

Remarks: Previously included sanmartinensis. Formerly regarded as a subspecies of grandis (e.g., Lynch & Smith 1965; Liner 2007), but as a separate species in recent works (e.g., Campbell & Vannini 1989; Bhullar 2011; Woolrich-Piña & Smith 2012; Nieto-Montes de Oca, García-Vázquez, Zúñiga-Vega & Schmidt-Ballardo 2013; Nieto-Montes de Oca, Barley, Meza-Lazáro, García-Vázquez, Zamora-Abrego, Thomson & Leaché (2017).
Distribution: Guatemala, Mexico (Chiapas, Oaxaca).


Xenosaurus rectocollaris

Pallid Knob-scaled Lizard

Bleiche Höckerechse*

Bleg Spalteøgle*

1993 Xenosaurus rectocollaris Smith & Iverson

Distribution: Mexico (Oaxaca, Puebla).


Xenosaurus sanmartinensis

San Martin Knob-scaled Lizard

San-Martin-Höckerechse*

San Martin-spalteøgle*

1961 Xenosaurus rackhami sanmartinensis Werler & Shannon
Xenosaurus grandis sanmartinensis Lynch & Smith 1965
Xenosaurus sanmartinensis Bhullar 2011

Remarks: Originally described as a subspecies of rackhami and later regarded as a subspecies of grandis, along with rackhami (e.g., Lynch & Smith 1965; Liner 2007; Woolrich-Piña & Smith 2012). Later, rackhami was recognized again as a separate species with sanmartinensis as a subspecies (e.g., Canseco-Márquez 2005; Nieto-Montes de Oca, García-Vázquez, Zúñiga-Vega & Schmidt-Ballardo 2013). Bhullar (2011) treated sanmartinensis as a separate species, which was supported by Nieto-Montes de Oca, Barley, Meza-Lazáro, García-Vázquez, Zamora-Abrego, Thomson & Leaché (2017).
Distribution: Mexico (Veracruz).


Xenosaurus tzacualtipantecus

Zacualtipán Knob-scaled Lizard, Huasteca Hidalguense Knob-scaled Lizard

Zacualtipán-Höckerechse*

Zacualtipán-spalteøgle*

2012 Xenosaurus tzacualtipantecus Woolrich-Piña & Smith

Remarks: A record from Puebla (Woolrich-Piña, Alvarado-Hernández, Mora-Guzmán, Arellano-Cárcamo, Olvera-Arrieta, González-Gonzalez & Sosa-Villanueva 2016; repeated by Woolrich-Piña, García-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017) is regarded as representing the subsequently described species fractus, following Nieto-Montes de Oca, Sánchez-Vega & Durán-Fuentes (2018).
Distribution: Mexico (Hidalgo, Veracruz).