Draco dussumieri
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iWestern Ghats Flying Lizard | ||||||||||||||||
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Draco dussumieri Duméril & Bibron, 1837 |
Draco dussumieri is an agamid lizard capable of gliding from tree to tree found in the Western Ghats and hill forests of southern India.
[edit] Description
The hind limb extends very nearly to the axil of the fore limb, if laid forwards. Nostrils directed upwards; tympanum naked. Dorsal scales rather smaller than the upper labials, slightly keeled; a very prominent, horn-like, conical tubercle behind and above the posterior part of the orbit. Male with a very low and indistinct nuchal crest; gular sac very long and narrow; on each side of the back a scries of small tubercular prominences, each being composed of several small scales. Throat with scattered, irregular brown spots. Ground-colour of the wings light; blackish violet reticulated lines occupy the middle and outer half of the wings, enclosing round light spots. Jerdon observes that this Dragon is only found in the neighbourhood of forests of the west coast of the Peninsula of India, frequenting the cocoa-nut and betel-nut plantations in their vicinity. It is tolerably common in all Malabar, Cochin, and Travancore, but not known farther north than Malabar, being cither unknown or very rare in Canara.[1]
Head small; snout constricted, as long as the diameter of the orbit; nostril directed upwards, perfectly vertical; tympanum naked, as large as the eye-opening. Upper head-scales unequal, keeled; a spinose conical scale at the posterior corner of the orbit; 9 to 12 upper labials, the last twice or thrice as large as the preceding. The male's gular appendage much longer than the head. Male with a slight nuchal fold. Dorsal scales scarcely larger than ventrals, unequal, smooth or very slightly keeled; on each side of the back a series of small tubercular prominences, each being composed of several small scales. The fore limb stretched forwards extends beyond the tip of the snout; the adpressed hind limb reaches the axil or not quite so far. Grey-brown above ; a series of more or less distinct dark circles on the back; wing-membranes above purplish black, enclosing round light spots, below with a series of large black spots near the margin; throat with irregular dark spots. [2]
[edit] References
- ^ C. A. L. Gunther (1864) The Reptiles of British India.
- ^ Boulenger, G.A.(1890) Fauna of British India. Reptilia and Batrachia.
- Duméril, A. M. C. and G. Bibron. 1837 Erpétologie Générale ou Histoire Naturelle Complete des Reptiles. Vol. 4. Libr. Encyclopédique Roret, Paris.
- Honda, Masanao; Ota, Hidetoshi; Kobayashi, Mari; Nabhitabhata,Jarujin; Yong, Soi-Sen & Hikida,Tsutomu 1999 Phylogenetic relationships of the flying lizards, genus Draco (Reptilia: Agamidae). Zoological Science 16: 535-549
- Inger,R.F. 1983 Morphological and ecological variation in the flying lizards (genus Draco). Fieldiana (Zoology), New Ser. 18: vi, 1-35
- McGuire, Jimmy A. & Heang, Kiew Bong 2001 Phylogenetic systematics of Southeast Asian flying lizards (Iguania: Agamidae: Draco) as inferred from mitochondrial DNA sequence data. Biological Journal of the Linnean Society 72: 203-229
- Murthy, T.S.N. 1990 A field book of the lizards of India. Rec. Zool. Surv. India, 115: 1-122