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Phelsuma antanosy RAXWORTHY & NUSSBAUM, 1993

IUCN Red List - Phelsuma antanosy - Critically Endangered, CR

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies 
Common Names 
SynonymPhelsuma antanosy RAXWORTHY & NUSSBAUM 1993: 345
Phelsuma antanosy — GLAW & VENCES 1994: 294
Phelsuma antanosy — RÖSLER 2000: 101
Phelsuma antanosy — BERGHOF 2005: 110
Phelsuma antanosy — HALLMANN et al. 2008: 81
Phelsuma antanosy — GLAW & RÖSLER 2015 
DistributionSE Madagascar (Tolanaro region)

Type locality: Petriky, 25°05’ S, 46°49’ E, 50 m elevation, Tôlanaro (Fort Dauphin) Fivondronana, Toliara (Tulear) Province, Madagascar.  
Reproductionoviparous 
TypesHolotype: UMMZ 196214 (RAN 34788), adult male
Paratypes: UMMZ 
DiagnosisDiagnosis. A medium sized Phelsuma, 48 mm maximum snout-vent length, with the. subcaudals not significantly enlarged transversally, nostril placed above or just behind the suture between the rostral and first upper labial, no median cleft on the rostral, one intersupranasal granule, eight (rarely seven) dorsal scale rows per tail whorl, keeled dorsal scales at tail base, some weakly keeled dorsolateral scales, keeled ventral scales, 29 femoral pores in the fully mature male. There is only one other species, Phelsuma cepediana, that has the nostril positioned above the suture between the rostral and first upper labial, and keeled ventral scales. This species has the following characters that differ from Phelsuma antanosy: the presence of a median suture (cleft) in the rostral in P. cepediana (absent in P. antanosy), dorsal scales at the tail base of P. cepediana smooth (keeled in P. antanosy), 18-25 femoral pores in P. cepediana (29 in mature P. antanosy), two or three intersupranasal granules in P. cepediana (P. antanosy has just one intersupranasal). Some specimens of Phelsuma antanosy have the nostril centered behind the suture between the rostral and first labial, which is the condition found in all other Madagascan species of Phelsuma. These specimens of P. antanosy are similar to the "lineata" group (P. lineata, P. minuthi, P. pusilla, P. quadriocellata) in that they have keeled ventral scales and weakly keeled dorsal scales. However P. antanosy lacks the characteristic bold dark lateral stripe or ocelli which are present on the flanks of P. lineata, P. minuthi, P. pusilla, and P. quadriocellata. All four of these species may have red spots on the lower back, but these are usually irregular or partly fused spots, and they do not form the three longitudinal lines seen in some individuals of P. antanosy. The reticulated pattern on the dorsal anterior half of the body of P. antanosy is unknown in the "lineata" group of Phelsuma, and probably is unique to the new species. (Raxworthy & Nussbaum 1993) 
CommentMember of the Phelsuma laticauda (phenetic) group (GLAW, VENCES & ZIEGLER 1999). 
References
  • Berghof, H.-P. 2005. Taggeckos. Natur und Tier Verlag, Münster, 144 pp. - get paper here
  • Gehring, P.S. & Glaw, F. 2010. Bunte Vielfalt in modernem Licht: Taggeckos der Gattung Phelsuma. Draco 11 (43): 4-21
  • Glaw ,F. & Vences, M. 1994. A Fieldguide to the Amphibians and Reptiles of Madagascar. Vences & Glaw Verlag, Köln (ISBN 3-929449-01-3)
  • Glaw, F. & Rösler, H. 2015. Taxonomic checklist of the day geckos of the genera Phelsuma Gray,1825 and Rhoptropella Hewitt,1937 (Squamata: Gekkonidae). Vertebrate Zoology 65 (2): - get paper here
  • Hallmann, G.; Krüger, J. & Trautmann, G. 2008. Faszinierende Taggeckos. Die Gattung Phelsuma. 2. Aufl. Natur und Tier Verlag, Münster, 253 pp. - get paper here
  • Pointer, M. D., Tsimilajay, H., Roberts, S. H., Gill, J. A., & Spurgin, L. G. 2024. Habitat use of the micro-endemic day gecko Phelsuma antanosy in Sainte Luce, Madagascar, and the case for translocation. Endangered Species Research, 54, 457-468 - get paper here
  • Raxworthy C J. NUSSBAUM R A. 1993. A new Madagascan Phelsuma with a review of Phelsuma trilineata and comments on Phelsuma cepediana in Madagascar (Squamata: Gekkonidae). Herpetologica 49 (3): 342-349. - get paper here
  • ROCHA, SARA; HERBERT RÖSLER, PHILIP-SEBASTIAN GEHRING, FRANK GLAW, DAVID POSADA, D. JAMES HARRIS & MIGUEL VENCES 2010. Phylogenetic systematics of day geckos, genus Phelsuma, based on molecular and morphological data (Squamata: Gekkonidae). Zootaxa 2429: 1–28 - get paper here
  • Rösler, H. 2000. Kommentierte Liste der rezent, subrezent und fossil bekannten Geckotaxa (Reptilia: Gekkonomorpha). Gekkota 2: 28-153
  • Rösler, Herbert 2001. Zur Rumpfbeschuppung der Gattung Phelsuma GRAY 1825: zoogeographische Aspekte (Sauria: Gekkonidae). Gekkota 3: 47-73
 
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