201 

 7- Dipsadomorphus irregularis (Merr.). 



Coluber irregularis^ Merrem, Bechst. Uebers. Lacep. IV 1802, p. 239, 



pi. XXXVII, fig. I. 

 Dipsadomorphus irregularis^ Boulenger, Cat. Sn. Ill 1896, p. 75 (s. syn.). 

 Boiga irregularis^ Barbour, Mem. Mus. Comp. Zool. Harv. Coll. XLIV 1912, p. 126. 



Snout longer than eye; rostral more broad than deep, visible 

 from above; internasals shorter than the praefrontals; frontal 

 as long as its distance from the rostral, shorter than the parietals; 

 loreal as long as deep or more long; a praeocular, extending 

 to the upper surface of the head, in contact with the frontal 

 or narrowly separated from it; two postoculars; temporals 

 2 — 3 + 3 — 4; nine (eight or ten) upper labials, fourth to 

 sixth or third to fifth or fifth to seventh entering the eye; 

 four or five lower labials in contact with the anterior chin- 

 shields; latter shorter than the posterior; anterior palatine 

 teeth strongly enlarged. Scales in 19 — 23 rows, vertebrals 

 enlarged; ventrals 217 — 272; anal entire; subcaudals 100 — 125 

 (69 or 75), of which some may be single. 



Yellowish, grey, brown or olive above, uniform or with 

 dark transverse bands or spots; usually a dark streak on each 

 side of the head behind the eye; upper labials yellow, usually 

 dark-edged. Lower surface yellowish, sometimes speckled with 

 dark; subcaudals sometimes black. Length of head and body 

 1700 mm.; tail 450 mm. 



Habitat: Celebes (Gorontalo, Minahassa, Manado!, Kema, 

 Kandari, Barabatuwa, Macassar); Sangir Islands; Ternatel; 

 Halmahera!; Batjan!; Salawatti; Misol; Ceram!; Buru!; Ambon!; 

 Goram; Kei Islands; Aru Islands; New Guinea (Sorong, Fak 

 Fak, Passim, Dorei, Mt. Arfak, Mansinam, Manokwari, Sermo- 

 wai river!, Humboldt Bay!, Lake Sentani, Mimika, Stekwa 

 and Lorentz! rivers. Fly river. Hula, Kapa Kapa, Bara Bara, 

 Dinawa in Owen Stanley Range 4000 feet, Fife Bay, S. of 

 Huon Gulf, Tami, Bogadjim, Bongu, Stephansort, Astrolabe 

 Bay, Lialun, Berlinhafen, Simpsonhafen, Simbang, Seleo Island, 

 Yule Island, Jobi); Schouten Islands (Mysore). — Ferguson, 

 Trobriand and Woodlark Islands; Louisiade Archipelago; Islands 

 of Torres Straits; Solomon Islands; Bismarck Archipelago. 



Note. A form from German New Guinea : Stephansort and 

 Seleo Island has been called by Mehely ') Dipsadomorphus irre- 



i) Termesz. Fuzetek XXI 1898, p. 172. 



