SNAKES. 137 



n. Adult. Africa. From Mr. Argent's Collection. 



o. Adult: not good state. Africa. From Mr. Argent's Collection. 



p. Adult. Africa. From Mr. Argent's Collection. 



q. Adult : injured. Africa- Old Collection. 



r, s. Adult and half-grown. Africa. Old Collection. 



t. Adult. Africa. 



u, v. Adult : tail injured. Africa. 



w, x. Adult. Africa. 



y. Adult : bad state. Africa. 



z. Half-grown. Africa. 



a. Young. Africa. 



ft. Young. Africa. From Mr. Warwick's Collection. 



y. Half-grown. ? From Mr. Argent's Collection. 



B. Like former, but yellow vertebral line wanting. 



S. Adult. Madagascar. Presented by Dr. J. E. Gray. 



C. Back and sides uniform brown, separated from belly by a 

 yellow band. 



e. Adult. Egypt. Presented by Mr. Burton. 



f. Adult. Egypt. Presented by Mr. Burton. 



77. Nearly half-grown. 



D. Above uniform brown, beneath uniform yellowish. 



0. Adult. West Africa. From Mr. Fraser's Collection. 



1, k. Adult. Egypt. Presented by M. Lefebvre, M.D. 



A. Adult : without head. S. Africa. From the Haslar Collection. 

 fi, v. Half-grown. S. Africa. Presented by Sir J. MacGregor. 



E. Bluish olive (in spirits), with five nearly equally broad 

 yellow bands. 



£. Adult. Bengal, 

 o. Adult : tail injured. India. 

 n. Adult : not good state. India. 

 p. Adult. India. 



4. PSAMMOPHIS IRREGULARIS. 



Fischer in Abhdlg. aus dem Gebiete der Naturwiss. 1856, p. 92. 

 t. 2. f. 4a, 4b (ante-ocular should not be divided). 



Head very broad behind, very distinct from neck ; first third 

 of the back black, with scattered irregular yellow spots, hinder 

 third yellow. Each ventral shield with a pair of black spots on 

 each side, forming together four parallel series of specks, lost on 

 the hinder third of the total length. West Africa. 



