i87 



separated from it ; two or three pair of chin-shields, inner in 

 contact with the three anterior lower labials. Scales in 'i^'j — 47 

 rows; ventrals 158 — 176; anal divided; subcaudals 70 — 106. 



Dark brown above, with narrow, pale brown, black-edged 

 transverse bands, in young specimens yellow; head pale with 

 a triangular or V-shaped dark marking on the snout, a A-shaped 

 spot on the occiput, and a dark band on each side passing 

 through the eye and extending to before the eye. Lower 

 surface white or yellowish, with dark brown spots along each 

 side; tail with brown spots. Length of head and body 820 mm.; 

 tail 230 mm. 



Nom. indig. Ular kadut (mal.). 



Habitat: Sumatra (Atjeh!, Labuan, Serdang!, Stabat, 

 Langkat, Deli!, Laut Tador, Indragiri, Djambi!, Ringgat); 

 Banka!; Riou!; Borneo (Bulangan river, Labuan, Kuching, 

 Buntal, Rejang river, Sebruang Valley, Pontianak, Landak!; 

 Singkawang; Montrado; Bandjermassin); Java (Batavia, Buiten- 

 zorg!, Depok, Preanger, Pekalongan!, Salatiga!, Surabaia!); 

 Celebes (Macassar!). — Malay Peninsula; Siam; Indo China; 

 Burma. 



Feeds on fish and frogs. 



40. Cerberus Cuvier. 

 (CuviER, Regne Anim. 2nd ed. II p. 81, 1829). 



Head small, slightly distinct from neck; eye small; pupil 

 vertically elliptic; snout covered with shields; parietals broken 

 up into scales; nasals in contact, partly divided, the cleft 

 beginning at the first or second labial; two (one) internasals; 

 loreal present. Maxillary teeth 12 — 17, separated by a short 

 interspace from two slightly enlarged, grooved teeth; anterior 

 mandibular teeth longest. Body round, covered with keeled 

 and striated scales without pits, in 23 — 29 rows; ventrals 

 rounded. Tail a little compressed; subcaudals in two rows. 



Distribution. S. E. Asia; N. Australia. 



A single species. 



I. Cerberus rhynchops (Schn.). 



Hydrus rhyjichops^ Schneider, Hist. Amph. I 1799, p. 246. 

 Cerberus rhynchops^ Boulenger, Cat. Sn. Ill 1896, p. i6, (s. syn.). 

 Hurria rhynchops^ Barbour, Mem. Mus. Comp. Zool. Harv. Coll. XLIV 1 912, 

 p. 123. 



