54. Z.\MENIS. 



I. Old- World species. 



3S3 



dipsas 

 /corj'Os 



gemonensis 



daklii 



rkodorhachis 



ventrimaculatus 



kardinii 



elegant'ksimus . . 

 Jlorulmtus 



fascinlaius . . 

 ravergieri ... 

 nummifer .. 



socotriB 



algirus 



hippocrepis 



dorri 



diadema 



arenanus 

 microlepis 



So. 



13 



15 



17 



17 

 17-19 



19 



19 



19 



19 



19 

 21-23 



21 

 21-23 

 21-23 

 23-25 



23 

 23-25 

 25-29 



31 

 25-33 

 2,V27 

 41-43 



194-197 

 162-177 

 187-208 

 180-203 

 190-250 

 205-218 

 214-262 

 194^211 

 193-212 

 197-200 

 201-228 

 206-228 

 197-225 

 190-222 

 197-216 

 219-228 

 214-232 

 222-258 

 24.5-254 

 210-278 



227 



263 



Lab. entenng eye. 



4th, 5th. 



4th, 5th. 



4th, 5th. 



4th, 5th, or 5th, 6th, 



4th, 5th. 



4th, 5th, or 5tb, 6th, 



5th, 6lh. 



5th, 6th. 



5th. 



5th, or 4tb, 



oth, 6th. 



5th, 6th. . 



4th, 5tli. 



5th, 6th. 



5th, or 5th, 



5th. 



5th, or 6th, or 0. 



5th, or 6th, or 0. 



4th, 5th. 



0. 



0. 



0. 



5th. 



, 6tb. 



1. Zamenis dipsas. 



Herpetodryas dipsas, Schleg. Phys. Serp. ii. p. 197 (1837). 



Leptophis olivaceus, Bum. 8^ Bibr. vii. p. 547 (1854). 



Megablabes olivaceus, Giinth. Ann. ^ Mag. N. H. (3) xv. 1865, p. 92. 



Snout scarcely projecting, obtuse ; eye very large. Eostral broader 

 than deep, just visible from above ; internasals shorter than the 

 praefrontals ; frontal once and a half as long as broad, as long as its 

 distance from the end of the snout, a little shorter than the parietals ; 

 loreal a little longer than deep : a divided prseocular, not touching 

 the frontal ; a small subocular below the prseocular ; two postoculars ; 

 temporals 2 + 2 ; eight upper labials, fourth and fifth , entering the 

 eye ; four or five lower labials ia contact with the anterior chin- 



