Abronia ramirezi CAMPBELL, 1994

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Higher Taxa	Anguidae (Gerrhonotinae), Diploglossa, Anguimorpha, Sauria, Squamata (lizards)
Subspecies
Common Names	E: Ramirez's Alligator Lizard S: Escorpión Arboricola de Ramirez
Synonym	Abronia ramirezi CAMPBELL 1994 Abronia ramirezi — KÖHLER 2000: 39 Abronia ramirezi — CLAUSE et al. 2020
Distribution	Mexico (W Chiapas), elevation 1350 m Type locality: Rancho El Recuerdo, Cerro La Vela, Sierra Madre de Chiapas, Municipio de Jiquipilas, Chiapas, México, 1350 m.
Reproduction	ovovivparous
Types	Holotype: IHN 1177.
Diagnosis	Diagnosis: Abronia ramirezi can be distinguished from all other species of Abronia in having 10 ventral longitudinal scale rows; some species of Abronia have 12 (e.g., bogerti, chiszari), whereas other species have 14 (e.g., lythrochila, aurita). The only other gerrhonotine having 10 longitudinal scale rows is the enigmatic Coloptychon rhombifer of eastern Costa Rica and western Panama (Good, 1988). Abronia ramirezi differs from all other species of Abronia except A. bogerti and A. chiszari in having an elongate body that is covered by 39 or more dorsal transverse scale rows. It may be distinguished from these species (Table 1) in having broad frontonasal-frontal contact, only two lateral supraoculars per side (versus three or four), and 12 dorsal longitudinal scale rows (versus 14-16). Abronia ramirezi differs from A. bogerti, but not A. chiszari, in having smooth, rather than obtusely keeled, middorsal scales. The number of subdigital lamellae on the fourth toe of A. ramirezi is only 16-17, the lowest observed in the genus Abronia; other species have 18-23. (Campbell 1994) Additional details (4483 characters) are available for collaborators and contributors. Please contact us for details.
Comment	Abundance: only known from the type locality (Meiri et al. 2017). This is one of the species called 'lost' and 'rediscovered' by Lindken et al. 2024.
Etymology	Named after Antonio Ramirez Velazquez, the Curator of Herpetology at the Instituto de Historia Natural (IHN) of Chiapas, Mexico, who discovered the species.
References	Aguilar-López JL, Luría-Manzano R, Pineda E, Canseco-Márquez L 2021. Selva Zoque, Mexico: an important Mesoamerican tropical region for reptile species diversity and conservation. ZooKeys 1054: 127-153 - get paper here Bille, T. 2001. Ein zweites Exemplar von Abronia bogerti TIHEN 1954 aus Oaxaca, Mexiko, mit Bemerkungen zur Variation der Art (Sauria: Anguidae). Salamandra 37 (4): 205-210 - get paper here Campbell J A 1994. A new species of elongate Abronia (Squamata: Anguidae) from Chiapas, Mexico. Herpetologica 50 (1): 1-7 - get paper here Clause, A. G., Luna-Reyes, R. & Nieto-Montes De Oca, A. 2020. A New Species of Abronia (Squamata: Anguidae) from a Protected Area in Chiapas, Mexico. Herpetologica 76 (3): 330-343 - get paper here Johnson, Jerry D.; Vicente Mata-Silva, Elí García Padilla, and Larry David Wilson 2015. The Herpetofauna of Chiapas, Mexico: composition, distribution, and conservation. Mesoamerican Herpetology 2 (3): 272–329. - get paper here Köhler, G. 2000. Reptilien und Amphibien Mittelamerikas, Bd 1: Krokodile, Schildkröten, Echsen. Herpeton Verlag, Offenbach, 158 pp. Köhler, G. 2008. Reptiles of Central America. 2nd Ed. Herpeton-Verlag, 400 pp. Lindken T.; Anderson, C. V., Ariano-Sánchez, D., Barki, G., Biggs, C., Bowles, P., Chaitanya, R., Cronin, D. T., Jähnig, S. C., Jeschke, J. M., Kennerley, R. J., Lacher, T. E. Jr., Luedtke, J. A., Liu, C., Long, B., Mallon, D., Martin, G. M., Meiri, 2024. What factors influence the rediscovery of lost tetrapod species? Global Change Biology, 30: 1-18 - get paper here Meiri, Shai; Aaron M. Bauer, Allen Allison, Fernando Castro-Herrera, Laurent Chirio, Guarino Colli, Indraneil Das, Tiffany M. Doan, Frank Glaw, Lee L. Grismer, Marinus Hoogmoed, Fred Kraus, Matthew LeBreton, Danny Meirte, Zoltán T. Nagy, Cristiano d 2017. Extinct, obscure or imaginary: the lizard species with the smallest ranges. Diversity and Distributions - get paper here
External links	IUCN Red List http://www.seh-herpetology.org/images/atlas/pdf/squamata/abrram.pdf Google images

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