5li8 On new liejidlcs from I'un7ia7i. 



similar scales on each side of the back ; ventral scales strongly 

 keeled, niucronate. Fourth finger slightly longer than third. 

 1'he hind limb reaches the shouhler or the ear. Tail cylin- 

 drical, not crested. Greyish or brownish above, with a 

 vertebral series of larije triano;ular or cordiform dark brown 

 or black spots pointing backwards. 



mm. mm. 



Total length 218 180 



Head 22 19 



^Vi(.lth of head 15 13 



Body 56 51 



Fore limb 35 31 



Hind limb 57 42 



Tail 140 110 



Four specimens from Tongchuan fu, obtained by the 

 Eev. F. J. Dymond. 



IfacropislJiodon rudis. 



Maxillary teeth 12 + 2. Eostral once and a half as long 

 as deep, scarcely visible from above ; upper head-shields 

 rugose; internasals much broader than long, nearly as long 

 as the prtefrontals ; frontal once and one fourth as long as 

 broad, slightly longer than its distance from the end of the 

 snout, as long as the parietals ; loreal small, deeper than 

 long ; three prteoculars, four postoculars, and three sub- 

 oculars separating the eye from the labials ; temporals scale- 

 like, strongly keeled ; seven upper labials ; five lower labials 

 in contact with the anterior cliin-shields, which are shorter 

 than the posterior. Scales veiy strongly keeled, "in 25 rows. 

 Yentrals 139; anal divided; subcaudals 50. Anterior part 

 of back with large square, transversely elliptic or biscuit- 

 shaped blackish-brown blotches separated by nariow brownish- 

 white interspaces; further back the ground-colour passes 

 gradually to olive-brown, with a median series of round and 

 a lateral series of longitudinally elliptic blackish spots ; head 

 blackish brown above^ cream-while on the upper lip and 

 below; belly greyish olive speckled with black anteriorly, 

 blackish speckled with white posteriorly. 



Total length 590 mm. ; tail IGO. 



A single male specimen was obtained at Tongchuan fu by 

 the llcv. F. J. Dymond. 



This species is well characterized by its very strongly 

 keeled scales and temporal shields and by the presence of 

 suboculars. 



