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Cyrtodactylus russelli BAUER, 2003

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos) 
Subspecies 
Common Names 
SynonymCyrtodactylus russelli BAUER 2003 
DistributionMyanmar (Burma: Kachin)

Type locality: upper Nat E-Su Stream, Htamanthi Wildlife Sanctuary, Hkamti Township, Sagaing Division, Myanmar (25°28’27.7’’N, 95°37’20.5’’E, elevation 227 m.); Map legend:
Type locality - Type locality.
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
 
Reproductionoviparous 
TypesHolotype: CAS 226137 
CommentDEFINITION.— A large sized Cyrtodactylus, snout-vent length to 116 mm; body moderately slender, elongate with well developed ventrolateral folds, limbs stout, digits long; one pair of enlarged postmental scales in broad contact behind mental; dorsum with 22 longitudinal rows of small, conical to keeled tubercles; 35–41 ventral scales across midbody to ventrolateral folds; no precloacal groove, 15 precloacal pores in a single series in male holotype, 16–19 femoral pores on each thigh separated from precloacal pores by a diastema (precloacal and femoral pores absent in female paratype). Thirteen subdigital lamellae beneath 4th toe of pes distal to basal digital inflection, nine broad lamellae basal to inflection. Subcaudal scales forming broad transverse plates, but distinctly narrower than tail. Dorsal pattern poorly defined, including dark elongate blotches or bands and scattered lighter blotches on flanks. Tail with alternating light and dark banding.

DIAGNOSIS.— Cyrtodactylus russelli may be distinguished from all congeners on the basis of its very large size (to 116 mm SVL), ventrolateral folds well developed, digits long, dorsum with 22 longitudinal rows of tubercles, 35–41 ventral scales across midbody to ventrolateral folds, no precloacal groove, 15 precloacal pores in a single series in male holotype, 16–19 femoral pores on each thigh separated from precloacal pores by a diastema (precloacal and femoral pores absent in female paratype), subcaudal scales forming broad transverse plates, but distinctly narrower than tail width, and dorsal pattern poorly defined, including dark elongate blotches or bands and scattered lighter blotches on flanks. Among its congeners in Myanmar, the new species is approached in size only by C. slowinskii (maximum SVL 108 mm), to which it appears closely related. It differs from this species in its less well demarcated dorsal pattern, white (vs yellowish) light markings, predominantly transverse wavy dorsal markings (vs paired blotches), and larger number of precloacal pores (15 vs 9–11) and femoral pores (16–19 per thigh vs 11–12) [from BAUER 2003]. 
EtymologyNamed after Anthony P. Russell (born 1947) of the University of Calgary. 
References
  • Bauer, A.M. 2003. Descriptions of seven new Cyrtodactylus (Squamata: Gekkonidae) with a key to the species of Myanmar (Burma). Proc. Cal. Acad. Sci. 54: 463-498
  • Rösler, H. & Glaw, F. 2008. A new species of Cyrtodactylus Gray, 1827 (Squamata: Gekkonidae) from Malaysia including a literature survey of mensural and meristic data in the genus. Zootaxa 1729: 8–22 - get paper here
  • Sumontha, M., Panitvong, N. & Deein, G. 2010. Cyrtodactylus auribalteatus (Squamata: Gekkonidae), a new cave- dwelling gecko from Phitsanulok Province, Thailand. Zootaxa 2370: 53–64 - get paper here
  • TRI, NGO VAN 2013. Cyrtodactylus dati, a new forest dwelling Bent-toed Gecko (Squamata: Gekkonidae) from southern Vietnam. Zootaxa 3616 (2): 151–164 - get paper here
  • Youmans, Timothy M. & L. Lee Grismer 2006. A new species of Cyrtodactylus (Reptilia: Squamata: Gekkonidae) from the Seribuat Archipelago, West Malaysia. Herpetological Natural History 10 (1): 61-70
 
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