HOMALOPSID^. PSAMMOPHIID^E. 613 



Family HOMALOPSID^J. 



Genus FORDONIA. 



261. Fordonia unicolor, Gray. Uniform Water-Snake. 

 Hab. India. 



a. Purchased, Nov. 29, 1880. See P. Z. S. 1880, p. 648. 



Family PSAMMOPHIULE. 



Genus PSAMMOPHIS. 



262. Psammophis crucifer (Merr.). Crossed Snake. 

 Hab. South Africa. 



a. Presented by the Eev. G. H. E. Fisk, C.M.Z.S., Aug. 26, 



1878. 



b. Purchased, April 23, 1879. 



c. Presented by the Eev. G. H. E. Fisk, C.M.Z.S., Dec. 22, 



1882. 



263. Psammophis sibilans (Linn.) . Hissing Sand-Snake. 

 Hab. South Africa. 



a. Presented by H.E. Sir G. Grey, K.C.B., May 25, 1861. 



SeeP.Z.S. 1861, p. 209. 



b, c. Presented by C. B. Mosse, Esq., C.M.Z.S., July 4, 1872. 



From West 'Coast of Africa. 



d. Presented by the Eev. G. H.E. Fisk, C.M.Z.S., Dec. 17, 

 1878. 



264. Psammophis elegans, Shaw. Slender Sand-Snake. 

 Hab. West Coast of Africa. 



a-c. Presented by C. B. Mosse, Esq., C.M.Z.S., July 4, 



1872. 

 d. Purchased, June 21, 1873, 



