28. coPHiAs. 419 



and wedged in between the third and fourth labials ; temporal 

 shields five ; five upper labials, fifth largest ; four lower labials ; 

 chin-shields, one anterior and two pairs, the first pair forming a 

 suture. Scales quadrangular, juxtaposed, narrow on the back and 

 sides, broader on the belly ; thirty scales round the middle of the 

 body and fifty from occiput to base of tail. A pair of enlarged 

 pectoral shields. Praianals elongate, three, the median sometimes 

 divided into two. Male with two praeanal pores on each side. Tail 

 obtuse at the end, covered with scales like those of the body. 

 Brown ; back lighter, with two or three longitudinal darker lines. 



millim. millitn. 



Total length 120 From end of snout 



Head 7 to vent 63 



Width of head .... 4-5 Fore limb 3 



Fx'om end of snout to Hind limb 2-5 



fore limb 14 Tail 57 



Guianas ; Venezuela. 



«-i. c? $. Cayenne. 



c. Hgr. Caracas. Paris Museum [P.]- 



4. Cophias dorbignyi. 



Bachia dorbignii, Grai/, Cat. p. 68. 

 Chalcides dorbignyi, Dtim. ^- Bihr. p. 462 ; A. Bum. Cat. M6th. 

 Eept. p. 14G. 



Fore limb with four (or three) digital tubercles; hind limb extremely 

 minute, undivided. Eostral large, rather projecting ; frontonasal 

 rather small, trapezoid, as broad as long ; frontal large, pentagonal, 

 longer than broad ; parietals large ; no interparietal ; two supra- 

 oculars ; nasal more than twice as broad as high ; loreal not half 

 the size of latter ; infraorbital triangular, wedged in between the 

 third and fourth labials ; temporal shields five ; five upper and three 

 lower labials ; chin-shields, one anterior and two pairs, first pair 

 forming a suture. Dorsal and lateral scales elongate hexagonal, 

 overlapping ; twenty-eight scales round the middle of the body, and 

 fifty from occiput to base of tail. A pair of enlarged pectoral 

 shields, Pra)anal shields three, median narrowest. Tail long, 

 obtuse at the end, covered with scales similar to the dorsals. Back 

 brownish white, sides and lower surfaces reddish brown ; three red- 

 dish brown lines along the back. 



