23 
Famity CoLuBRID&£. 
Genus TROPIDONOTUS, 
4. Tropidonotus natrix, Common Snake, Hab, British Islands; 1, pre- 
sented by Mrs. Cooper, 18th August, 1887 ; 5, deposited by S. K. Twigg, 
Esq., 1887. 
CLAss PISCEs. 
FamiLy PErcipa£. 
1. Perca fluviatilis, Common Perch, Hab. British Waters. 
FamILy GOBIIDA. 
2. Gobius Niger, Black Goby, Hab. British Seas. 
3. Gobius minutus, Freckled Goby, Hab. British Seas 
FamiLy SALMONIDA. 
4, Salmo fario, Common Trout, Hab. British fresh water. 
Famity Esocip2, 
5. Hsox lucius, Pike, Hab. British waters. 
FaMIty CYPRINID&. 
6. Gobio fluviatilis, Common Gudgeon, Hab. British fresh waters. 
7. Leuciscus entitus, Roach, Hab. British fresh waters. 
8. Leuciscus phoxinus, Minnow, Hab. British fresh waters. 
9. Tenca vulgaris, Common Tench, Hab. British fresh waters. 
Famity MuRG@NIDES. 
10. Anguilla vulgaris, Common Eel, Hab. British fresh waters. 
