212 REPTILES. 



of second (triangular) upper labial and posterior nasal ; one ante- 

 rior, two posterior oculars ; two nasals, nostril between. Scales 

 smooth, not much imbricate, in fifteen or seventeen rows. Anal 

 bifid ; subcaudals two-rowed. Grooved fang in front, a series 

 of smaller equal teeth behind. New Guinea ; Australia. 



Pseudelaps, Dum. Sf Bibr. vii, p. 1231. Elaps, sp., Schleg. 

 Ess. ii. p. 452, &c. Demansia, Gray, MS. Brit. Mus. (1836), 

 and Zool. Misc. 1842, p. 54. 



1. Demansia psammophis. 



Elaps psammophis, Schlegel, Ess. ii. p. 455, and Ahhildg. 

 t. 46. f. 14. Pseudelaps psammophidius, Dum. S^- Bibr. p. 1234. 



Habit very slender; forehead very convex. Above nearly 

 uniform greenish olive ; rostral shield without cross streak. 



a. Large specimen. Port Essington. Presented by the Earl 



of Derby. 

 6. Adult. Port Essington. Presented by the Earl of Derby. 



c. Adult : bad state. N. Austraha. 



2. Demansia reticulata. 



Gray, Zool. Misc. p. 54. 



Habit moderate ; forehead flat. Yellowish : skin between the 

 scales and outer edges of the scales black ; a yellowish, dark- 

 edged streak crossing the rostral shield. 



a-c. Adult and young. W. Australia. 



d, e. Adult : not good state. W. Australia. 

 /. Adult. W. Australia. 



g. Adult. W. Australia. 



h. Half-grown. Australia. 



i. Half-grown. Austraha. 



k. Young. Australia. Presented by Sir J. Macgregor. 



3. Demansia olivacea. 



Gray, Zool. Misc. p. 54. 



Habit moderate. Olive-green, skin between the scales black ; 

 scales of the sides with two white streaks at the base ; a dark 

 streak from the back edge of eye to the angle of mouth. 



a. Adult. N.E. Australia. Presented by Dr. Richardson. 



b. Adult. N.E. Austraha. Presented by Dr. Richardson. 



c. Adult : bad state. Port Essington. 



d. Half-grown. N. Australia. From Mr. Argent's Collection. 



