OPHIDIA. 



COLUBRID^E. 



Zamenis rhodorhachus (Jan.). 



One specimen. South of Toyo Plain. 



Philothammus semivarigatus (Smith). 

 One specimen. 

 Sheik, Golis Range. 



Psammophis sibilans (Linnaeus). 



One specimen. 

 Sheik Golis, Range. 



Naia nigricollis (Reinh). 



One specimen. 



Deregodleh. 



This snake was found lying at a water hole at this place in the 

 bed of the Tug, coiled and evidently waiting the approach of its 

 prey, possibly a sand-grouse, some of which we killed here, or a 

 Dik-Dik. D. G. E. 



VIPERID.E. 



Atractaspis microlepidota Gunther. 



One specimen. 



Hersi Barri, Ogaden. 



Fourth upper labial the largest and the only one entering the 

 eye. Scales, 29; caudals, 250; subcaudals, 32. All single. 



This snake was lying at the foot of a tree, coiled, and Mr. 

 Dodson stepped over it without seeing it. The natives state 

 that it is very poisonous and its bite soon fatal. D. G. E. 



Echis carinatus (Schneid). 



One specimen. 

 Hullier. 



