Calotes irawadi ZUG, BROWN, SCHULTE & VINDUM, 2006
Can you confirm these amateur observations of Calotes irawadi?
|Higher Taxa||Agamidae (Draconinae), Sauria (lizards)|
|Synonym||Calotes irawadi ZUG, BROWN, SCHULTE & VINDUM 2006|
Type locality: MYANMAR: Sagaing Division, Chatthin Wildlife
Sanctuary, San Myaung Camp (23°34′27.6′′N, 95°44′15.6′′E; ca. 110 m elevation), approx. 2 km WNW of Chatthin. Map legend:
- 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 this does not always work properly. We are working on it.
|Types||HOLOTYPE.— USNM 520543, an adult male by local collector, 17 July 1997.|
|Comment||DIAGNOSIS.— Calotes irawadi is a member of the versicolor species group and shares the obliquely posteriorad or vertical scale-row orientation on the neck and adjacent supra-axillary area with all other versicolor group members except C. htunwini. It differs from C. versicolor (Pondicherry population) by a much smaller body size (female, male means 77.4, 82.4 mm SVLvs. 93 mm, 119 mm, respectively), and more Dorsal (means 48.9 vs. 40.8) and Midbody (47.1 vs 42.8). Middorsal crest scales in C. irawadi are smaller (equal to tympanum diameter) and are straighter and more numerous than C. versicolor (Pondicherry) with crest scales to 2.5–3.0×diameter of tympanum. Lengths of supratympanic spines in C. irawadi are half or less the diameter of tympanum and 2/3 or more tympanum diameter in C. versicolor (Pondicherry). C. irawadiaverages smaller than Moyingyi and Nat-Ma-Taung “versicolor” and has fewer Dorsal. It differs from eastern Thailand “versicolor” by more Dorsal and in coloration by the usual presence of DorsalSt and NucSpot [from ZUG & VINDUM 2006].|
ETYMOLOGY.— Irawadi is a variant spelling of Ayeyarwaddy and is used as a noun in apposition. Our use of Irawadi refers to the broad distribution of this species in the central portion of the Ayeyarwaddy River basin.