275 

 I. Haplopeltura boa (Boie). 



Amhlycephalus boa^ Boie, Isis 1828, p. 1034. 



Haplopeltura boa^ Boulenger, Cat. Sn. Ill 1896, p. 439 (s. syD.). 



Snout very short, deep; rostral narrow, much more deep 

 than broad; frontal not broader than the supraocular, almost 

 twice as long as broad, longer than its distance from the tip 

 of the snout, as long as or a little longer than the parietals; 

 two or three enlarged occipitals; two or three superposed 

 loreals, the lower sometimes entering the eye; 6 — 8 shields in 

 addition to the supraocular round the eye; temporals 3 + 3 

 or 4; eight to ten upper labials; two pair of lower labials in 

 contact behind the mental; three or four pair of large chin-shields, 

 the anterior sometimes fused or preceded by an azygous shield. 

 Scales in 13 rows; ventrals 148 — 191 ; anal entire; subcaudals 

 88—127. 



Pale brown or yellowish above, usually with large, dark 

 brown blotches, sometimes extending to the belly; a large, 

 dark brown spot on the head ; sides of head whitish, with dark 

 streaks radiating from the eye. Lower surface yellowish, mottled 

 with dark brown. Length of head and body 530 mm.; tail 220 mm. 



Habitat: Nias!; Sumatra') (Peudawa in Atjeh); Banka!, 

 Borneo (Kuching, Saribas, Pankalan ampat, Baram, Sandakan 

 Bay); Java (Buitenzorg, Barang!, Nongkodjadjar in Tengger 

 Mts. 1300 M.!); Moluccas?-). — Malay Peninsula up to 2000 

 feet; Siam ; Penang; Philippines. 



2. Amblycephalus Kuhl. 

 (KuHL, Isis p. 474, 1822), 



Head distinct from neck; eye moderate, with vertical pupil; 

 nasal single; maxillary short, deep, with 5 or 6 equal teeth; 

 mandibular teeth decreasing in size. Body compressed, covered 

 with smooth or feebly keeled scales, oblique, in 15 rows, the 

 vertebral row sometimes enlarged; ventrals rounded. Tail short 

 or moderate; subcaudals in two rows. 



Distribution. S. E. Asia; Malay Peninsula and Archipelago. 



1) Nelly de Rooy, Reptiles of Nias, in Kleiweg de Zwaan, Craniol. Inters. 

 Niass. Schiidel 1915, p. 307. 



2) See Boulenger's Catalogue. 



