114 



loreal more long than deep; one prae- and two postoculars; 

 temporals 2 + 2; eight upper labials, third to fifth entering 

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

 shields; latter as long as the posterior. Scales in 17 rows; 

 ventrals 241 ; anal divided; subcaudals 193. 

 "■t- Brown above; white below. Length of head and body 

 910 mm.; tail 570 mm. (After BOULENGER; not seen by me). 

 Habitat: Borneo (Kuching, Sarawak). 



22. Stegonotus Dum. & Bibr. 



(DUMERII, & BiBRON, Mem. Ac. Sc. XXIII p. 477, 1853). 



Head distinct from neck; eye moderate or small; pupil verti- 

 cally elliptic. Maxillary teeth 15 — 20, increasing in size to the 

 median ones; two or three last large; anterior mandibular teeth 

 enlarged. Body long, round or a little compressed, covered 

 with smooth scales with pits, in 15, 17 or 19 rows; ventrals 

 with ari obtuse lateral angle. Tail rather long; subcaudals 

 single or in two rows. 



Distribution. Philippines; Moluccas; New Guinea; Queensland. 



Key to the I ndo-A ust ralian species. 



A. Scales in 19 rows i. ^^. magnits p. 114. 



B. Scales in 17 rows. 



I. Two labials entering the eye 2. S. modestus p. 115. 



II. Three labials entering the eye. 



a. One praeocular Z- ^- hatjamnsis p. 116. 



b. Two praeoculars A- S. plumbeus p. 117. 



C. Scales in 15 rows. 



1. One anterior temporal; eight upper labials, fourth 

 and fifth entering the eye; loreal twice as long 



as deep; ventrals 180—197 5- •5^- gi'"it^i"'i ?■ n?- 



2. Two anterior temporals; seven upper labials, third 

 and fourth entering the eye; loreal not quite one 



time and a half as long as deep ; ventrals 167 — 183. 6. S. diehli p. 118. 



I. Stegonotus magnus (Meyer). 



Lycodon magnus^ Meyer, Mon. Berl. Akad. 1874, p. 136. 



Stegonotus viagnus^ v. Lidth de Jeude, Nova Guinea IX, Zool. 2 191 1, p. 273. 



Rostral more broad than deep, wedged in between the inter- 

 nasals; latter half as long as the praefrontals; frontal slightly 



