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Hemidactylus arnoldi LANZA, 1978

IUCN Red List - Hemidactylus arnoldi - Data Deficient, DD
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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies 
Common NamesE: Arnold's Leaf-toed Gecko 
SynonymHemidactylus arnoldi LANZA 1978: 243
Hemidactylus arnoldi — RÖSLER 2000: 85
Hemidactylus arnoldi — LARGEN & SPAWLS 2010: 289
Hemidactylus arnoldi — LIVIGNI 2013: 287 
DistributionNW Somalia, probably adjacent Djibouti and Ethiopia

Type locality: Guban region at 11°00’N 43°00’E, 1500 feet elevation, Somalia  
Reproductionoviparous 
TypesHolotype: BMNH 1937.12.5.296, adult female 
DiagnosisDiagnosis: A stout, big Hemidactylus (body length of the only known adult specimen = 82 mm) with: back covered with granules among which are scattered large, strongly keeled, subtrihedral tubercles forming 20 more or less regular longitudinal rows; tail shorter than the body, subcylindrical, tapering, without any basal constriction; nostril bordered by rostral, 1st labial and 3 nasals; 12-13 upper labials; 8-9 lower labials; 10 subdigital lamellae under the 1st and 14 under the 4th toe; a roundish, smooth, slightly convex, enlarged scale surrounded by the granular scales of the sole, halfway between the base of the 1st and 5th toe; very distinctive dorsal colour pattern of broad, dark, transverse bars on the neck, trunk, tail and limbs. Adult male unknown, but almost surely with preanal pores only (if present), as the adult female and the young male so far known lack enlarged scales under the thighs. 
CommentAbundance: only known from its original description (Meiri et al. 2017). 
EtymologyNamed after E. N. Arnold (1940-), formerly of the British Museum. 
References
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Lanza B 1978. On some new or interesting east African amphibians and reptiles. Monitore Zoologico Italiano supplemento 10 (14): 229-297 - get paper here
  • Lanza, B. 1990. Amphibians and reptiles of the Somali Democratic Republic: check list and biogeography. Biogeographia, 14: 407-465 [1988] - get paper here
  • Largen, M.J.; Spawls, S. 2006. Lizards of Ethiopia (Reptilia Sauria): an annotated checklist, bibliography, gazetteer and identification. Tropical Zoology 19 (1): 21-109 - get paper here
  • Largen, M.J.; Spawls, S. 2010. Amphibians and Reptiles of Ethiopia and Eritrea. Edition Chimaira, Frankfurt, 694 pp.
  • LiVigni, F. (ed.) 2013. A Life for Reptiles and Amphibians, Volume 1. Chimaira, Frankfurt, 495 pp. - 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
  • Rösler, H. 2000. Kommentierte Liste der rezent, subrezent und fossil bekannten Geckotaxa (Reptilia: Gekkonomorpha). Gekkota 2: 28-153
  • Rösler, Herbert 2015. Bemerkungen über einige Geckos der Zoologischen Staatssammlung München. Gekkota, Suppl. (2): 3-54
  • Sindaco, R., Razzetti E., Ziliani U., Wasonga V., Carugati C., Fasola M. 2007. A New Species of Hemidactylus from Lake Turkana, Northern Kenya (Squamata: Gekkonidae). Acta Herpetologica 2 (1): 37-48 - get paper here
  • Sindaco, Roberto; Ugo Ziliani; Edoardo Razzetti; Caterina Carugati; Cristina Grieco; Fabio Pupin; Badr Awadh Al-Aseily; Francesca Pella; Mauro Fasola 2009. A misunderstood new gecko of the genus Hemidactylus from Socotra Island, Yemen (Reptilia: Squamata: Gekkonidae) . Acta Herpetologica 4 (1): 83-98 - get paper here
  • Spawls, Stephen; Tomáš Mazuch& Abubakr Mohammad 2023. Handbook of Amphibians and Reptiles of North-east Africa. Bloomsbury, 640 pp. - get paper here
 
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