Cnemaspis boulengeri STRAUCH, 1887
Can you confirm these amateur observations of Cnemaspis boulengeri?
|Higher Taxa||Gekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)|
|Common Names||E: Con Dao round eyed gecko, Boulenger's Rock Gecko|
|Synonym||Cnemaspis boulengerii STRAUCH 1887|
Gonatodes glaucus SMITH 1921 (fide SMITH 1935)
Cnemaspis boulengeri — M. A. SMITH 1935: 76
Cnemaspis boulengerii — KLUGE 1993
Cnemaspis (Cnemaspis) boulengerii — RÖSLER 2000: 62
Cnemaspis boulengerii — NGUYEN et al. 2009
|Distribution||Vietnam (Poulo Condor), Cochinchina, S Chinese Sea|
Type locality: Poulo Condore Island in the South Chinese Sea.
|Types||Holotype: unknown (fide NGUYEN et al. 2009)|
|Diagnosis||Diagnosis (genus): Cnemaspis is characterized by having slender digits with recurved clawed; two distal phalanges which are compressed, forming an angle with the basal portion of the digits, the lower surface having rows of plates; body more or less depressed; scales granular or tubercular above; tail is more or less cylindrical; pupils rounded; eyelid distinct all around the eye; males with or without precloacal or femoral pores; a well developed hypoischium, post-anal bones and sacs, and a reduced hyoid apparatus, with only one pair of basibranchials; the presence of three or four sternal ribs; interclavicles well developed and cruciform (in the Oriental species) or much reduced and with only a very small transverse arm (in the African species); adhesive toe pads absent (in the Oriental species) or present (in the African species); leaf toes and paraphalanges absent, having diurnal habits predominantly (Smith 1935; Gamble et al. 2012, Sayyed et al. 2019).|
Diagnosis. Maximum SVL 69.0 mm; 8–10 supralabials; six or seven infralabials; smooth ventral scales; no precloacal pores; 32–38 paravertebral tubercles; tubercles linearly arranged especially on upper flanks; lateral caudal furrows absent, dorsal caudal furrow weak; caudal tubercles restricted to a single paravertebral row; subcaudals smooth, bearing a medial row of enlarged scales; one postcloacal tubercle on each side; smooth, enlarged, plate-like femoral and subtibial scales; enlarged submetatarsal scales on first toe; 25–32 subdigital fourth toe lamellae; dorsal surfaces unicolor tan; large, subcircular black spots on shoulders and nape; and thin, yellow reticulation on side of neck (Tables 6,7 in Grismer et al. 2014).
|Comment||Type species: Cnemaspis boulengerii STRAUCH 1887 is the type species of the genus Cnemaspis STRAUCH 1887. “The genus Cnemaspis... the members of which are distinguished from other gekkonids in possessing a suite of characteristics, including round pupil, non-dilated clawed digits, a distinct eye-lid-structure around the eyes and diurnal habits.” (DAS 1993). Note that this diagnosis is only valid in Southeast Asia.|
Characters: Karunarathna et al. 2019 provide a table of characters of all 36 Sri Lankan species. See Murthy et al. 2019 for a table of Femoral and Preanal Pore patterns, as well as dorsal scalation and spinal tubercles in the genus.
Behavior: While most Cnemaspis species are diurnal some are nocturnal (Nguyen et al. 2020).
Key: Amarasinghe & Karunarathna 2020, and Amarasinghe et al. 2021 provide a key to diminutive day geckos of the genus Cnemaspis in Sri Lanka. Karunarathna et al. 2021: 203 provide a table or morphological characters across Sri Lankan Cnemaspis.
Habitat: for habitat data across species of the genus Cnemaspis in Sri Lanka see Amarasinghe et al. 2021: Table 4.
|Etymology||Named after George Albert Boulenger (1858-1937), herpetologist at the British Museum of Natural History, London.|
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