102 



Nom. in dig. Ular tikus (mal.). 



Habitat: Sumatra (Siboga, Agam, Padang); Java (Gadok, 

 Batavia, Krawang!, Buitenzorg, Semarang, Tjandi!, Salatiga!, 

 Kediri!); W. & S. E. Borneo!. Singapore; Penang; Malay 

 Peninsula; Siam; Cochin China; Burma; Assam; Bengal; E. 

 Himalayas. 



4. Coluber erythrurus (Dum. & Bibr.). 



Plagiodon erythrurus, Dumeril & Bibron, Erp. Gen. VII 1854, p. 175. 

 Coluber erythntrus, Boulenger, Cat. Sn. II 1894. p. 62 (s. syn.). 



Rostral more broad than deep, visible from above; internasals 

 shorter than the praefrontals; frontal as long as its distance 

 from the tip of the snout, shorter than the parietals; loreal 

 about as deep as long; a large praeocular; two postoculars; 

 temporals 2 + 2; nine upper labials, fourth to sixth entering 

 the eye; six lower labials in contact with the anterior chin- 

 shields; latter as long as 'the posterior. Scales in 21 rows, 

 keeled, 23 on the neck; outer row of caudal scales smooth or 

 feebly keeled; ventrals 211 235; anal entire; subcaudals86 112. 



Dark brown above, anteriorly reddish-brown with a V- r 

 A-shaped black marking on the neck; lips yellowish. Lower 

 surface yellowish anteriorly, dark brown behind; subcaudals 

 lighter. Young specimens with black vertical bands on 

 each side, alternating with one another. Length of head and 

 body 1300 mm.; tail 370 mm. 



Nom. in dig. Ule alo (Toradja-name). 



Habitat: Celebes (Gorontalo, Manado, Posso!, Kema, Kan- 

 dari, Macassar, Tjamba); Buton. Philippines; Sulu Islands. 



This snake can inflate its neck, resembling a cobra. 



5. Coluber janseni (Bleeker). 



Gonyosomd jansenii, Bleeker, Nat. Tijdschr. Nederl. Ind. XVI 1858, p. 242. 

 Coluber janseni, Boulenger, Cat. Sn. II 1894, p. 57, pi. I, fig. 2. 



Snout obtuse, projecting; rostral more broad than deep, 

 visible from above; internasals slightly shorter than the prae- 

 frontals; frontal as long as or shorter than its distance from 

 the tip of the snout, shorter than the parietals; loreal at least 

 twice as long as deep; praeocular large, in contact with the 

 frontal; two postoculars; temporals 1+2 or 2 + 3; nine or ten 

 upper labials, fifth to seventh entering the eye; five or six 



