Cyrtodactylus agamensis (BLEEKER, 1860)
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|Higher Taxa||Gekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)|
|Common Names||E: Agam Bow-fingered Gecko|
|Synonym||Gymnodactylus agamensis BLEEKER 1860: 328|
Cyrtodactylus agamensis — RÖSLER et al. 2007
Cyrtodactylus agamensis — RÖSLER & GLAW 2008
Cyrtodactylus agamensis — HARVEY et al. 2015
Cyrtodactylus agamensis — MILTO & BEZMAN-MOSEYKO 2021
|Distribution||Indonesia (Sumatra: Maninjau, Agam)|
Type locality: Agam, Sumatra.
|Types||Holotype: BMNH 1918.104.22.168, female, E.W.A. Lüdeking, 1859|
|Diagnosis||Diagnosis. Adult males reaching 74.9 mm SVL, adult females reaching 86.8 mm SVL; 10–13 supralabials, 9–12 infralabials; tubercles of dorsum moderate in size with no intervening smaller tubercles; tubercles on ventral surfaces of forelimbs, in gular region absent, tubercles present in ventrolateral body fold; 31–37 paravertebral tubercles; 17–21 longitudinal rows of dorsal tubercles; 50–67 rows of ventral scales; 21–26 subdigital lamellae on 4th toe; 9–10 femoro-precloacal pores in males; dorsum not bearing a scattered pattern of white tubercles; 6–7 dark body bands with uneven margins often broken into separate spots; 10–12 dark, caudal bands on original tail; white caudal bands in adults infused with dark pigment (Table 1, Milto & Bezman-Moseyko 2021).|
Coloration in life. Dorsal ground color of head, body, limbs, and tail beige-gray; nape with 5 irregular blotches; narrow, dark brown nuchal band extends from posterior margin of one eye to posterior margin of other eye, forms broken V-shaped figure on neck; 2nd neck band separated into 2 bands; 6 or 7 narrow, dark colored dorsal bands between limb insertions with uneven edges and often broken into 2 blotches; 1st band terminates at shoulders, last band terminates on sacrum; 5 or 6 dark gray ragged and poorly distinguishable bands on forelimbs and hind limbs; 10 to 12 wide, dark bands approximately twice the width of white bands extend onto tail; all bands encircle tail; ventral surfaces of head, limbs, and tail white; gular scales and abdomen immaculate, white (Milto & Bezman-Moseyko 2021).
Comparisons. Cyrtodactylus agamensis is distinguished from all Sumatran congeners by a high number of ventral scales and a low number of femorocloacal pores with the exception of C. quadrivirgatus Taylor, 1962. It is separated from C. lateralis (Werner, 1896) in having banded body coloration, 9–10 vs. 13 femorocloacal pores and having 10–12 vs. 7–9 caudal bands. It differs from C. marmoratus Gray, 1831 in having 9–10 vs. 15–26 femorocloacal pores and 50–67 vs. 40–50 ventral scales and by a banded dorsal pattern. It is further separated from C. psarops Harvey et al., 2015 in having 9–10 vs. 28–32 femorocloacal pores, 50–67 vs. 38–49 ventral scale and 17–21 vs. 23–26 rows of body tubercles. It is further separated from C. quadrivirgatus in having 50–67 vs. 34–42 ventral scales, in having 21–26 vs. 19–20 subdigital lamellae under the 4th toe and in lacking a striped dorsal pattern. Cyrtodactylus agamensis differs from most closely distributed and possibly parapatric species C. semicinctus Harvey et al., 2015 (Table 2) by a lower number of rows of body tubercles (17–21 vs. 24–27), a higher number of ventral scales (50–67 vs. 33–44), and a fewer number of femorocloacal pores in males (9–10 vs. 36–38) and in females (0–7 vs. 17–19) (Milto & Bezman-Moseyko 2021).
|Comment||RÖSLER et al. 2007 revalidated Cyrtodactylus agamensis but their diagnosis of this species is fairly vague (differs from other species ”by being smaller in SVL and having more ventrals...” etc.). Their key states “67” ventrals” for agamensis but this seems to be based on a single female.|
Abundance: Cyrtodactylus agamensis is known from a single female, the holotype (Rösler et al. 2007, Hartmann et al. 2016, Meiri et al. 2017) and 6 additional specimens found by Milto & Bezman-Moseyko 2021.
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