| 词条 | Sibynophis subpunctatus |
| 释义 |
| name = Sibynophis subpunctatus | image = Sibynophis subpunctatus.JPG | image_caption = | genus = Sibynophis | species = subpunctatus | authority = (A.M.C. Duméril, Bibron, & A.H.A. Duméril, 1854) | synonyms = Polyodontophis subpunctatus }} Sibynophis subpunctatus, commonly known as Duméril's black-headed snake or Jerdon's many-toothed snake, is a species of nonvenomous colubrid snake endemic to Bangladesh, India and Sri Lanka. BehaviorSibynophis subpunctatus is active by day as well as at night. It lives in leaf litter, preying on geckos, skinks, and smaller snakes. DescriptionMaximum size is 18 inches (46 cm). Rostral scale nearly twice as broad as deep; suture between the internasals a little shorter than that between the prefrontals; frontal longer than its distance from the end of the snout, as long as the parietals or a little shorter; loreal longer than deep; one preocular; two postoculars, both in contact with the parietal; temporals 1 (or 2) + 2; 9 or 10 upper labials, fifth and sixth, or fourth, fifth, and sixth, entering the eye; eighth upper labial usually excluded from the labial margin, simulating a lower anterior temporal; 4 lower labials in contact with the anterior chin shields, the first lower labial usually separated from its fellow by the mental; posterior chin shields a little longer than the anterior chin shields. Dorsal scales in 17 rows. Ventrals 151-220 (240 according to Blanford); anal divided; subcaudals 47-76. Pale brown above, with a vertebral series of small round black spots; usually a more or less distinct dark lateral line or series of dots; head and nape dark brown or black; lips, canthus rostralis, a transverse line between the eyes, and two broad cross-bands, one in front and one behind the nape, all yellow; the dark colour often extending along the median line, bisecting the yellow collar; lower surfaces yellow, each shield with a black dot near its outer border.[1] Sri Lankan specimens have 157 to 176 ventrals and 52-64 subcaudals.[2] Geographic rangeSibynophis subpunctatus occurs in Bangladesh, the Western Ghats of India and in Sri Lanka.[1] In India it is found in Maharashtra state in Pune (formerly Poona) district. There are distribution records from Mulshi, Pune district, and also Solapur has been frequently cited. Specimens from the Northeast of India are probably those of Sibynophis sagittarius.[3]In Sri Lanka it is found mostly towards the west coast from Puttalam to Kalutara.[4] Also seen in Palghar district village kelve road. Cited references1. ^1 Boulenger, G.A. 1890. The Fauna of British India, Including Ceylon and Burma. Reptilia and Batrachia. Secretary of State for India in Council. (Taylor & Francis, Printers). London. xviii + 541 pp. (Polyodontophis subpunctatus, p. 303.) 5. http://www.snakebd.com/snakeProfile.php2. ^Wall, F. 1921. Ophidia Taprobanica or the Snakes of Ceylon. Colombo Museum. (H.R. Cottle, Government Printer). Colombo, Ceylon. xxii + 581 pp. (Polyodontophis subpunctatus, pp. 84-89.) 3. ^Captain, Ashok; David J. Gower; Patrick David; Aaron M. Bauer. 2004. Taxonomic status of the Colubrid snake Sibynophis subpunctatus (Dumeril, Bibron & Dumeril, 1854). Hamadryad 28 (1): 90-94. 4. ^ Accessed December 2006 Other references
External links
6 : Colubrids|Fauna of Maharashtra|Reptiles of India|Reptiles of Sri Lanka|Reptiles described in 1854|Reptiles of Bangladesh |
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