184 REPTILES. 



terior ocular, raised above the surface of crown ; loreal square, 

 two short nasals, nostril between ; nine upper labials, fourth, 

 fifth and sixth forming the lower edge of eye. Scales smooth, 

 imbricate, rhomboid, in seventeen rows, those of the vertebral 

 row larger, six-sided. Anal and subcaudals entire. Posterior 

 maxillary tooth longest, channeled ; the remainder appear to be 

 equal in length. Our specimen, being rather discoloured, exhibits 

 a uniform bluish-green coloration of the superior parts ; scales 

 of the anterior part of body white at the base ; beneath uniform 

 yellowish. Length of cleft of mouth §" ; length of tail 4f"; 

 total length 23". 



*&* 



11. Amblycephalus, Kuhl. 



Dipsas with a very elongate, slender body and tail ; head broad, 

 high, round, snout excessively short; vertical shield rather narrow, 

 chin-shields very broad ; one loreal. Scales smooth, elongate, 

 scarce (thirteen or fifteen rows), those of the vertebral row larger, 

 hexagonal. Anal and subcaudals entire. Pupil round, eyes mo- 

 derate. Anterior palatine and anterior mandibular teeth long ; no 

 furrowed tooth. Small Dipsas from Java. 



Amblycephalus, sp., Kuhl Sf Boie, Bidrag. natuurk. Weten- 

 schapp. verzam. door von Haal, Vrolik en Mulder, iii. p. 249 ; 

 Isis, 1827 & 1828. Dipsas, sp., Schlegel. Aplopeltura, Dum. 

 fy Bibr. vii. p. 444. 



1. Amblycephalus boa. 



Amblycephalus boa, {Kuhl) H. Boie, Bidrag. natuurk. IVeten- 

 schapp. verzam. door, fyc. iii. p. 249 ; Isis, 1828, p. 1035. Dipsas 

 boa, Schleg. Ess. 1. 1 1. f. 29, 30 ; Cantor, Catal. p. 78. pi. 40. f. 3. 

 Aplopeltura boa, Dum. Sf Bibr. vii. p. 444. 



Brownish, marbled with purple; on each side a series of large, 

 irregular, whitish (in spirits) black-edged blotches. 



a. Adult. Philippine Islands. From Mr. Cuming's Collection. 



b. Large specimen. Borneo. 



c. Adult. Borneo. From Mr. Lowe's Collection. 



d. Adult. Asia. From the Levden Museum. 



12. Pareas, Wagl. 



Dipsas with a compressed body of moderate length ; tail short, 

 thin, very distinct from trunk; head blunt and round, snout ex- 

 ceedingly short ; shields of head truncated, labial shields narrow, 

 chin-shields broader than long. Scales rhombic, scarce (fifteen 

 rows), those of the vertebral row rather larger, polygonal. Anal 



