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Acanthodactylus spinicauda DOUMERGUE, 1901

IUCN Red List - Acanthodactylus spinicauda - Critically Endangered, CR

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Higher TaxaLacertidae, Eremiadinae, Sauria, Lacertoidea, Squamata (lizards)
Common NamesE: Doumergue's Fringe-fingered Lizard 
SynonymAcanthodactylus pardalis var. spinicauda DOUMERGUE 1901: 162
Acanthodactylus spinicauda — SALVADOR 1982: 97
Acanthodactylus spinicauda — SCHLEICH, KÄSTLE & KABISCH 1996: 394
Acanthodactylus spinicauda— HARRIS & ARNOLD 2000
Acanthodactylus spinicauda — SINDACO & JEREMČENKO 2008 
DistributionNW Algeria (Southern base of Sahara-Atlas)

Type locality: El Abiod-Sidi-Cheikh, Arba Tahtani.  
TypesSyntypes: BMNH 1946.8.5.34—43 (Arba Tahtani), MNHN-RA 8958 (El Abiod-Sidi-Cheikh). 
DiagnosisDiagnosis: Small species. Along with maculatus, body more slender than other species of pardalis group. Relatively long slender limbs with toes longer and more pectinate than in other species. Spiny sides of tail base. Pectinate eyelids. Distinct pectination of nasal scale. Anterior border of ear opening denticulate. Barely keeled, flat dorsals.
Subocular not in contact with upper lip. Three series of scales on the fingers. Males with 24 presacral vertebrae, females with 26. Color pattern greatly diminished with near absence of dorsal stripes and bands. Conspicuous ocelli and reticulation on body sides (Salvador 1982: 99). 
CommentAbundance: this is one of the species called “lost” and “rediscovered” by Lindken et al. 2024. 
  • Dellaoui, Boualem; Menad Beddek, Olivier Peyre, Philippe Geniez, Benjamin Allegrini, Fatiha Koudache, Pierre-André Crochet 2015. Rediscovery of Acanthodactylus spinicauda Doumergue, 1901 in Algeria. Herpetology Notes 8: 511-515 - get paper here
  • Doumergue,F. 1901. Essai sur la faune erpétologique de l'Oranie avec des tableaux analytiques et des notations pour la détermination de tous les reptiles et batraciens du Maroc, de l'Algerie et de la Tunisie. L. Fouque, Oran, 404 pp. - get paper here
  • 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
  • Salvador, A 1982. A revision of the lizards of the genus Acanthodactylus (Sauria: Lacertidae). Bonner Zool. Monogr. (16): 1-167 - get paper here
  • Schleich, H.H., Kästle,W., Kabisch, K. 1996. Amphibians and Reptiles of North Africa. Koeltz, Koenigstein, 627 pp.
  • Schlüter, U. 2009. Fransenfingereidechsen (Acanthodactylus) in der Natur und im Terrarium. Teil 4: Die Acanthodactylus-pardalis-Gruppe. Reptilia (Münster) 14 (76): 52-60 - get paper here
  • Sindaco, R. & Jeremcenko, V.K. 2008. The reptiles of the Western Palearctic. Edizioni Belvedere, Latina (Italy), 579 pp. - get paper here
  • van der Kuyl, Antoinette C.; Donato L. Ph. Ballasina, John T. Dekker, Jolanda Maas, Ronald E. Willemsen and Jaap Goudsmit 2002. Phylogenetic Relationships among the Species of the Genus Testudo (Testudines: Testudinidae) Inferred from Mitochondrial 12S rRNA Gene Sequences. Molecular Phylogenetics and Evolution 22: 174-183 - get paper here
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