COLUBRIDJJ. 607 



228. Tropidonotus ordinatus, Linn. Garter-Snake. 

 Hab. North America. 



a-d. Presented by A. Downs, Esq., C.M.Z.S., Oct. 2, 1863. 

 e,f. Purchased, July 22, 1868. 



g-m. Presented by A. Downs, Esq., C.M.Z.S., Aug. 26, 1869. 

 n. Presented by A. Downs, Esq., C.M.Z.S., Oct. 3, 1871. 

 o. Presented by A. Eorrer, Esq., Aug. 20, 1873. Var. tn- 

 fernalis. From California. 



229. Tropidonotus sirtalis (Linn.). Striped Snake. 

 Hab. North America. 



a. Presented by Samuel Garman, Esq., Nov. 3, 1882. 



230. Tropidonotus fasciatus (Linn.). Mocassin Snake 

 Hab. North America. 



a, b. Purchased, Oct. 15, 1869. 



c, d. Purchased, Aug. 6, 1872. 



e. Purchased, July 26, 1876. 



f-s. Bom in the Gardens, Dec. 21, 1877. 



t-a\ Born in the Gardens, Sept 26, 1878. 



b\ Bora in the Gardens, Dec. 5, 1881. 



c 1 , d\ Born in the Gardens, Aug. 4, 1882. 



231. Tropidonotus leberis (Linn.). Seven-banded Snake. 

 Hab. North America. 



a, 6. Purchased, Aug. 6, 1872. 



c-i. Bred in the Gardens, Aug. 27, 1872. 



j-n. Purchased, July 9, 1878. 



o-t. Bred in the Gardens, May 9, 1879. 



u-h\ Bred in the Gardens, Feb. 17, 1880. 



^-o 2 . Bred in the Gardens, Dec. 10, 1880. 



Genus ISCHNOGNATHUS. 



232. Ischnognathus occipito - maculatus (Storer). Spotted- 



headed Snake. 



Hab. Nova Scotia. 



a-f. Presented by A. Downs, Esq., C.M.Z.S., Oct. 3, 1871. 



233. Ischnognathus dekayi, Holbr. Dekay's Snake. 

 Hab. North America. 



a. Purchased, Nov. 15, 1880. 



