92, BIMOTES. 215 



Holarchus, Cope, Proc. Amor. Philos. Soc. xxiii. 1886, p. 488. 

 Dicraiilax, Cope, Am. Nat. 1893, p. 480. 



Maxillary teeth 8 to 12, posterior veiy strongly enlarged and 

 compressed ; mandibular teeth subequal. Head short, not distinct 

 from neck ; eye rather small, with round pupil ; rostral large. 

 Body cylindrical ; scales smooth or feebly keeled, in 13 to 21 rows, 

 with or without apical pits ; ventrals rounded or obtusely keeled 

 laterally. Tail short or moderate ; subcaudals in two rows. 



Southern China, East Indian contiuent and archipelago. 



Fig. 17. 



Skull of Simotcs albocinctus 



Synopsis of the Sjiecics. 

 I. Anal entire. 



A. Portion of rostral seen from above as long as or a little shorter 

 than its distance from the frontal. 



1. Scales in 19 or 21 rows. 



a. Two superposed anterior temporals ; fifth or fourth and 

 fifth labials usually entering the eye. 



n. Four internasals ; ventrals not angulate lateralh'. 



1. siileii(li(h(s, p, 217. 



/3. Two internasals ; ventrals angulate laterally. 



Suture between the internasals as long 

 as or longer than that between the 

 prasfrontals ; frontal large, consider- 

 ably longer than its distance from the 

 end of the snout 2. parjnirascciis, p. 218. 



