Family CROTALID-E, 
Genus CRoTALUS. 
Crotalus miliarius (Linn.). Smaller Rattlesnake. 
‘Hab. Canada. 
a. Presented by J. W, James, Esq., Nov. 30, 1873. 
Class BATRACHIA. 
Order ANURA. 
Family HYLID&. 
Genus Hyta. 
Hyla versicolor (Leconte). Changeable Tree- Frog. 
Hab. North America. 
a. Presented by Prof. Rolleston, Nov. 10, 1873. 
Class PISCES. 
Family SQUALID. 
Genus ScyLiium. 
Scyllium stellare (Linn.). Large Spotted Dogfish. 
Hab. British Seas. F 
a,b, Purchased, July 28, 1873. 
