SNAKES. 65 



k. In spirits. Adult. India. Presented by Dr. Patrick Russell. 



I. In spirits. Adult. Borneo. Presented by James Brooke, Esq. 



m — p. In spirits. Adult and young. Madras. Presented by J. 

 C. Jerdon, Esq. 



q. In spirits. India. Presented by the Earl of Derby. 



r. In fluid. Ceylon. Presented by R. Templeton, Esq. 



i', t. In fluid. Adult. Lateral streak distinct, white ; belly black- 

 spotted. Philippines. From Mr. Cuming's collection. 



u, V. In fluid. Adult. Lateral streak nearly obliterated ; belly 

 very dark. Philippines. From Mr. Cuming's collection. 



w. In fluid. Young. Var. ? Olive above and below, slightly 



yellow varied ; side-streak broad, 3^ series of scales wide, uni- 

 form yellow ; anterior frontal 2, separate. Borneo. From Mr. 

 Lowe's collection. 



2. The BoRNEAN Bokadam. Cerberus acutus. Homalopsis 

 Schneiderii, var. Borneo, Schlegel, Phys. Serp. 341. 



Scales lanceolate, very acute : lead-coloured (adult, in spirits) ; 

 lips, lower part of the sides and beneath white ; belly dark marbled ; 

 cheek-streak none. 



a. In spirits. Adult. Borneo. From the Leyden Museum, as 

 " Homal, Schneideri, Schlegel." 



** Back and sides one-coloured. 



3. The Philippine Bokadam. Cerberus unicolor. 

 Uniform dull dark bluish gray above and beloAv ; scales sharply 



and strongly keeled, rounded at the end ; head-shields rather con- 

 vex ; cheek-streak none. 



a. In fluid. Adult. Philippines. From Mr. Cuming's collection. 



4. The Australian Bokadam. Cerberus australis. Homa- 

 lopsis australis, Gray, Zool. Misc. 64. 



Slate-black, in spirits : under lip and beneath white : throat 

 with two oblong black streaks ; under-side with two series of large, 

 square, black spots, united by a rather broad, black, central streak : 

 tail black beneath : anterior frontal small, triangular ; hinder rhom- 

 bic : vertebral moderate, ovate ; occipital small, scale-like ; loreal 

 square : the fifth and sixth labial shields under the eye, the first or 

 second hinder ones double. 



a. In spirits. North Coast of New Holland, Port Essington. 



From Mr. Gilbert's collection. 

 h. In spirits. Australia, Port Essington. Presented by Sir John 



Richardson, M.D., R.N. 



g3 



