PSEUDOCTCLOPHTS. 299 



dark brown spots separated by narrower interspaces; these brown 

 spots much shorter, roundish, on the hinder part of the body ; 

 head dark brown above, separated from the first dorsal spot by a 

 narrow white collar ; upper lip and lower parts uniform white. 



Total length 21 inches ; tail 4. 



Hah. Anaimalai Hills ; Ceylon; ~Waltair,Vi7.agapatam, according 

 to Elliott. 



359. Hydrophobus davisonii. 



Ulupe davisonii, Blanf. J. A. S. B. xlvii, 1878, p. 128; id. P. Z. 8. 

 1881, p. 221 ; Boettg. Ber. Ofenb. Ver. Naturk. 1888, p. 55. 



Eostral not twice as broad as deep, visible from above ; nasal 

 undivided ; suture between the internasals as long as that between 

 the prsef rentals ; frontal longer than its distance from the end of the 

 snout, shorter than the parietals ; loreal longer than deep, enter- 

 ing the eye ; no prseocular ; one or two postoculars ; temporals 

 1 + 2 (or 2 + 2) ; seven upper labials, third and fourth entering the 

 eye ; four lower labials in contact with the anterior chin-shields, 

 which are longer than the posterior. Scales in ] 3 rows. Ventrals 

 235-265; subcaudals 91-108. Above with dark brown or black 

 elongate spots separated by white or pale brown narrower inter- 

 spaces ; on the hinder half of the body the brown spots become 

 smaller or may be broken up ; snout brown, connected with the 

 first dorsal brown spot by a longitudinal brown band, the rest of 

 the head being whitish ; lower parts whitish, tail mottled with 

 brown. 



Total length 26-5 inches ; tail 6. 



Hob. Tenasserim, Siam, Cochin China. 



Genus PSEUDOCYCLOPHIS*, 



Boettger, Zool. Anz. 1888, p. 262. 



Maxillary teeth 10 to 14, small and subequal ; mandibular teeth 

 subequal. Head much depressed, not distinct from neck ; eye 

 small, with vertically elliptical pupil. Body much elongate, cylin- 

 drical; scales smooth, without apical pits, in 15 or 17 rows; 

 ventrals not keeled ; subcaudals in two rows. 



Four species belong to this genus, three of which occur in India ; 

 the fourth (P. persicus, And.) is known from Persia. 



Synopsis of Indian Species. 



Nostril pierced in an undivided nasal ; internasals 



longer than prsefrontals ; scales in 15 rows. ... P. walteri, p. 300. 



Nasal semidivided ; prsefrontals longer than inter- 

 nasals ; scales in 17 rows P. olivaceus, p. 300. 



Nasal semidivided ; internasal and praefrontal single ; 



scales in 17 rows P. bicolor, p. 300. 



* The name Grotea, Theob. (1868), is preoccupied (Cress. 1864). 



