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Cnemaspis jacobsoni DAS, 2005

IUCN Red List - Cnemaspis jacobsoni - Data Deficient, DD
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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies 
Common Names 
SynonymCnemaspis jacobsoni DAS 2005
Cnemaspis jacobseni [sic] — GRISMER & ONN 2008
Cnemaspis jacobseni [sic] — GRISMER et al. 2010 
DistributionIndonesia (Simeulue, Mentawi Archipelago)

Type locality: Labuan Badjan, Pulau Simeulue (02° 35’N; 96° 05’E), Aceh Propinsi, Republic of Indonesia  
Reproductionoviparous 
TypesHolotype: ZMA.RENA 11990 
DiagnosisDiagnosis: A small species of Cnemaspis (SVL to 30.5 mm), diagnosable from conspecific species in showing the following combination of characters: two semicircular supranasals that are separated by two scales, a large anterior one that contacts rostral and a small posterior one; four postnasals bound nasal; posteriorly, each postmental is bounded by four smooth, rounded and juxtaposed scales; no paravertebral rows of tubercles on dorsum; pectoral and abdominal scales distinctly elongated and imbricate, bearing a single keel; spinous processes on lateral surface of body; tail segmented, with enlarged flattened scales forming whorls; median subcaudals enlarged, unicarinate; supralabials (to midorbit position) 6-7; infralabials 7-8; lamellae under toe IV 14; and adult males lack preanal and femoral pores as well as a preanal depression. 
CommentAbundance: only known from its original description (Meiri et al. 2017). This is one of the species called 'lost' and 'rediscovered' by Lindken et al. 2024. 
EtymologyNamed after Dutch businessman-amateur zoologist, Edward Richard Jacobson (1870–1944), collector of the type series. 
References
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Das, I. 2005. Revision of the Genus Cnemaspis Strauch, 1887 (Sauria: Gekkonidae), from the Mentawai and Adjacent Archipelagos off Western Sumatra, Indonesia, with the Description of Four New Species. Journal of Herpetology 39 (2): 233–247 - get paper here
  • Grismer, J.L.; Grismer, L.L. & Chav T. 2010. New Species of Cnemaspis Strauch 1887 (Squamata: Gekkonidae) from Southwestern Cambodia. Journal of Herpetology 44 (1): 28–36 - get paper here
  • Grismer, L. Lee & Chan K. Onn 2008. A new species of Cnemaspis Strauch 1887 (Squamata: Gekkonidae) from Pulau Perhentian Besar, Terengganu, Peninsular Malaysia. Zootaxa 1771: 1–15 - get paper here
  • Grismer, L. Lee; Chan K. Onn; Nasir, N. & Sumontha, M. 2008. A new species of karst dwelling gecko (genus Cnemaspis Strauch 1887) from the border region of Thailand and Peninsular Malaysia. Zootaxa 1875: 51–68 - get paper here
  • Grismer, L.L. & Das, I. 2006. A new species of gekkonid lizard of the genus Cnemaspis STRAUCH 1887 from Pulau Pemanggil, Johor, West Malaysia. Herpetological Natural History 10 (1): 1-7 - get paper here
  • Grismer, L.L. & Ngo, V.T. 2007. Four new species of the gekkonid genus Cnemaspis Strauch 1887 (Reptilia: Squamata) from Southern Vietnam. Herpetologica 63 (4): 482-500 - get paper here
  • Iskandar, Djoko T.; Jimmy A. McGuire, and A. A. Thasun Amarasinghe 2017. Description of Five New Day Geckos of Cnemaspis kandiana Group (Sauria: Gekkonidae) from Sumatra and Mentawai Archipelago, Indonesia. Journal of Herpetology 51 (1): 142-153 - get paper here
  • LEE, JUSTIN L.; ARYEH H. MILLER, GEORGE R. ZUG, DANIEL G. MULCAHY 2019. The discovery of Rock Geckos Cnemaspis Strauch, 1887 (Squamata: Gekkonidae) in the Tanintharyi Region, Myanmar with the description of two new species. Zootaxa 4661 (1): 040–064 - 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
  • 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
 
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