233 . '>u ni.iu.i.. 



a-b. <$ (V. 144, 144 ; C. Java. Leyden Museum. 



87,45), 



c. $ (V. 142; C.?). Java. llr. Fruhstorfer [C.'J. 



d. $ (V. 155; C. 46). Salak, Java. II. Kirkpatrick, Esq. 



[P.]. 



f. rf (V. 148; C. 4U Bataviii. 



/. cf (V. 150; C. 37). Willis Mts., Kediri, Baron v. Huegel [C.]. 



Java, 5000 feet. 



g. Yg. (V. 165 ; C. 44). Amboyna. Dr. Bleeker. (Type of 



Rabdosoma amboinense.) 



5. Oligodon trilineatus. 



Siraotes trilineatua, Dum. < Bibr. vii. p. 036 (1854) ; Jan, Arch. 



Zool. Anat. Phys. ii. 1862, p. 324, and Icon. G6n. 12, pi. iv. fig. 1 



(1805). 

 Oligodon trilineatus, Fischer, Abh. naturw. Ver. Hamb. ix. 1885, p. 7. 



Nasal divided ; portion of rostral seen from above nearly as long 

 as its distance from the frontal; suture between the internasals 

 nearly as long as that between the praefrontals ; frontal longer than 

 its distance from the end of the snout, as long as the parietals ; 

 loreal small, longer than deep ; one prae- and one postocular ; 

 temporals 1 + 2 or 2 + 2; seven upper labials, third and fourth 

 entering the eye ; four lower labials in contact with the anterior 

 chin-shields, which are nearly twice as long as the posterior. Scales 

 in 17 rows. Ventrals 145-157; anal entire; subcaudals 52-62. 

 Dark brown or blackish above and below ; head yellowish brown, 

 with blackish oblique bands interrupted on the crown ; a yellow 

 vertebral stripe, a fine yellowish line along each side of the back, 

 and a white line along each side of the belly. 



Total length 330 millim. ; tail 80. 



Pulo Nias. 



a-b. $ (V. 147; C. 60) Nias. HerrSunderniann[C.l. 



& hgr. (V. 157 ; C. 54). 



6. Oligodon modestus. (PLATE X. fig. 3.) 



Oligodon modestus, Gilnth. Itept. Brit. Ind. p. 210 (1864), andProc. 

 Zool. Soc. 1879, p. 77. 



Nasal divided ; portion of rostral seen from above as long as its 

 distance from the frontal ; suture between the internasals a little 

 shorter than that between the pncfrontals ; frontal longer than ita 

 distance from the end of the snout, as long as the parietals ; no 

 loreal; one prae- and one postocular; temporals 1 + 2 or 1+3; six 

 upper labials, third largest, and entering the eye ; three or four 

 lower labials in contact with the anterior chin-shields, which are 

 longer than the posterior. Scales in 15 rows. Ventrals 158-170 ; 

 anal entire ; subcaudals 41. Dark brown above, with a yellowish 

 vertebral streak ; a yellowish chevron-shaped band on the occiput ; 

 lower parts yellowish, with quadrangular black spots. 



