50. sxEsoNoxus. 365 



vertically elliptic pupil. Body elongate, cylindrical or feebly com- 

 pressed ; scales smooth, with apical pits, in 17 rows; ventrals 

 obtusely angulate laterally. Tail moderate or long ; subcaudals in 

 double or single row. 



Philippines ; Moluccas ; Papuasia ; Queensland. 



Si/nojjsis of the Species. 

 I. Not more than 100 subcaudals. 

 A. Two labials entering the eye. 



1. Ventrals 175-212. 



rt. Subcaudals in two rows. 



Rostral a little broader than deep, the 



portion visible from above measuring 



one third to one half its distance from 



the frontal ; fourth and fifth labials 



entering the eye 1. cucullatus, p. 365, 



Rostral much broader than deep, the portion 



visible from above measuring about one 



fourth its distance from the frontal ; 



usually third and fourth labials entering 



the eye 2. modestas, p. 366. 



h. Subcaudals single 3. heterurus, p. 367. 



2. Ventrals 220-232 4. muellen, p. 367. 



E. Three labials entering the eye ; ventrals 210-236. 



One pr<Tocular 5. bafjanensls, p. 368. 



Two praeoculars 6. ■plumbeus, p. 368. 



II. 112-123 subcaudals; rostral slightly 



broader than deep 7. dumerilii, p. 368. 



1. Stegonotus cucullatus. 



Lycodon modestus, part., Schleg. Phys. Serp. ii. p. 119 (1837). 



cucullatum, Dum. Hf Bibr. vii. p. 376 (1854). 



Zamenophis australis, Giinth. Ann. ^ Mag. N. H. (4) ix. 1872, p. 21, 



and Proc. Zool. Soc. 1877, p. 130. 

 Lycodon niaguus, A. B. Meyer, Mon. Berl. Ac. 1874, p. 136. 

 keyensis, Doria, Ann. Mus. Genova, vi. 1874, p. 351, pi. xii. 



fig. h. _ 



? Lycodon darnleyensis, Madeay, Proc. Linn. Soc. N. S. W. ii. 1877, 



p. 38. 

 Lielaphis cucullatus, Peters ^- Doria, Ann. Mus. Genova, viii. 1878, 



p. 396. 

 keyensis, Peters ^- Doria, I. c. p. 398. 



Rostral a little broader than deep, the portion visible from above 

 measuring one third to one half its distance from the frontal ; 

 internasals about two thirds the length of the praifrontals ; frontal 

 as long as broad or a little longer, nearly as long as its distance 

 from the end of the snout, much shorter than the parietals ; loreal 



