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. 



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 an obtuse lateral angle. Tail rather long; subcaudals 

 single or in two rows. 



Distribution. Philippines; Moluccas; New Guinea; Queensland. 



Key to the In do-Australian species. 



A. Scales in 19 rows i. S. magnus 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 3-5. batjamnsis p. 116. 



b. Two praeoculars 4. 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. S. guntheri p. 117. 



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 magnus, v. Lidth de Jeude, Nova Guinea IX, Zool. 2 1911, p. 273. 



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

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



