318 OPHIDIA. 



with the peculiar coloration, appeared to me to indicate a specific difference. The male is 

 16^ inches long, the tail measuring 3^ inches. A third specimen has been purchased, and is 

 said to be from Siam. 



Lycodon striatus. 



Russell, Incl. Seiy. i. pi. 16. 



Cohiber striatus, Shaw, Zool. ill. p. 527. 



malignus, Daud. Rept. vii. p. 46. 



Snout much depressed, rather broad, of moderate length, with the upper lip not swollen, 

 and without canthus rostralis. Rostral shield low, not quite twice as broad as high, slightly 

 bent backwards on the upper surface of the snout. Anterior frontals rather small, half as 

 large as posterior, obtusely rounded in front, as long as broad. Posterior frontals as broad 

 as long ; vertical of moderate size, not elongate ; occipitals of small size, scarcely longer than 

 vertical, rounded behind. Nostril small, lateral, between two nasals. Loreal single, twice 

 as long as high ; prtcocular narrow, single, in contact with the third labial, but not with the 

 vertical ; two postoculars. Eight upper labials, the third, fourth, and fifth of which enter the 

 orbit. Temporals scale-like, generally 2 + 3, the anterior in contact with the postoculars. 

 Dentition similar to that of L. milieus. Scales smooth, with a minute apical groove, in seven- 

 teen rows. Abdomen and tail without lateral ridge. Ventrals 167-174; anal bifid ; sub- 

 caudals 46-48. Black or brown, with or Avithout a whitish collar ; body and tail with white 

 cross bands, which are sometimes bifid on the sides, sometimes reduced to a vertebral series 

 of white spots. 



This species appears to be confined to the peninsula of India ; we have received it lately 

 from the Anamallay Mountains and from the Madras Presidency ; it does not grow to the 

 same size as L. aulims, the largest specimen I have seen being less than 2 feet, tail one-sixth 

 of the total length. 



LyCODON AJS'AMALLENSIS. 



Snout of moderate width, rather depressed, scarcely longer than broad, with the upper lip 

 not swollen, and with a very obtuse canthus rostralis. Rostral shield very low, twice as 

 broad as high, slightly bent backwards on the upper surface of the snout. Anterior frontals 

 square, not rounded in front, half the size of posterior ; posterior frontals rather longer than 

 broad. Vertical not much elongate ; occipitals rather narrow, rounded behind, of moderate 

 length. Two loreals on each side ; nostril lateral ; prseocular scarcely touching the vertical ; 

 two postoculars ; supraciliary of moderate size. Nine upper labials, the third, fourth, and 

 fifth of which enter the orbit. Temporals numerous, scale-like. Scales smooth, in seventeen 

 rows, a minute apical groove being visible in only a few scales. Abdomen and tail with an 

 angular ridge along each side. Ventrals 202 ; anal entire; subcaudals 74. Each maxillary 



I 



