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Lygodactylus expectatus PASTEUR & BLANC, 1967

IUCN Red List - Lygodactylus expectatus - Near Threatened, NT

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Common NamesE: Ambilobe Dwarf Gecko 
SynonymLygodactylus (Domerguella) expectatus PASTEUR & BLANC 1967: 587
Lygodactylus expectatus — KLUGE 1993
Lygodactylus expectatus — GLAW & VENCES 1994: 285
Lygodactylus (Domerguella) expectatus — RÖSLER 2000: 92
Lygodactylus expectatus — PUENTE et al. 2009: 13
Lygodactylus expectatus — RÖLL et al. 2010
Lygodactylus expectatus — GIPPNER et al. 2021 
DistributionN Madagascar (Ambilobe)

Type locality: Karst d’Ambilobe, 12 km NNW Ankarana, District Ambilobe, N Madagascar.  
TypesHolotype: MNHN-RA 1990.0001 
DiagnosisDiagnosis. An apparent endemic of limestone karst areas of northern Madagascar, rather small-sized compared to related species. It can clearly be assigned to the L. madagascariensis group by sharing the characters listed in the group definition above. It differs from all species in the L. madagascariensis group by its dorsolateral scales which are enlarged relative to the dorsal and lateral scales (not distinctly enlarged in the other species), and by the presence of two dark spots in the region of the neck (not distinct in the other species). L. expectatus also appears to attain smaller maximum sizes (adult SVL 27.0–29.7 mm vs. a maximum size larger than 30 mm in all other species in the group). Furthermore distinguished from L. miops and especially L. guibei by the absence (vs. presence) of dorsolateral tubercles and spiny tubercles at the tail base, and from L. rarus by the absence of distinct broad crossbands on tail. (PUENTE et al. 2009) 
CommentHabitat. According to Pasteur & Blanc (1967), L. expectatus occurs in the shelter of vegetation in rocky areas. We found this species at Ankarana during the day on trees around the karstic rocks, at ca. 1–2 m from the ground.

Abundance: only known from the type locality (Meiri et al. 2017). 
EtymologyFrom Latin expectatus = expected. As explained in the original description, G. Pasteur and C.P. Blanc were expecting to find a new species, closely related to L. madagascariensis, in the karstic regions of Ambilobe. 
  • Gippner, Sven, Scott L Travers, Mark D Scherz, Timothy J Colston, Mariana L Lyra, Ashwini V Mohan, Malte Multzsch, et al. 2021. A Comprehensive Phylogeny of Dwarf Geckos of the Genus Lygodactylus, with Insights into Their Systematics and Morphological Variation. Molecular Phylogenetics and Evolution, 107311 - get paper here
  • Glaw ,F. & Vences, M. 1994. A Fieldguide to the Amphibians and Reptiles of Madagascar. Vences & Glaw Verlag, Köln (ISBN 3-929449-01-3)
  • Krüger, Jens 2001. Die madagassischen Gekkoniden. Teil II: Die Geckos der Gattung Lygodactylus GRAY 1864 (Reptilia: Sauria: Gekkonidae). Gekkota 3: 3-28
  • 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
  • Pasteur, G., and C. P. Blanc. 1967. Les lézards du sous—genre malgache de lygodactyles Domerguella (gekkonidés). Bulletin de la Société Zoologique de France, 92:583—597.
  • PUENTE, MARTA; FRANK GLAW, DAVID R. VIEITES & MIGUEL VENCES 2009. Review of the systematics, morphology and distribution of Malagasy dwarf geckos, genera Lygodactylus and Microscalabotes (Squamata: Gekkonidae). Zootaxa 2103: 1-76 - get paper here
  • Röll, Beate; Heike Pröhl, Klaus-Peter Hoffmann 2010. Multigene phylogenetic analysis of Lygodactylus dwarf geckos (Squamata: Gekkonidae). Molecular Phylogenetics and Evolution 56 (1): 327-335 - get paper here
  • Rösler, H. 2000. Kommentierte Liste der rezent, subrezent und fossil bekannten Geckotaxa (Reptilia: Gekkonomorpha). Gekkota 2: 28-153
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