Contributions to the Ichthyology of Ohio. 125 



20. Salvelinus namaycush (Walbaum), Lake Trout. Lake 

 Erie. 



2r. Salvelinus fontinalis (Mitchill). Brook Trout. Cas- 

 talia Creek (near Sandusky). This is a very cold spring creek 

 proceeding from tiie well-known Castalia spring, and is, I believe, 

 the only trout stream in Ohio; the stock is kept up by the introduc- 

 tion of fry at regular periods. 



Family VIIL — Esocidte * 



22. Esox VERMicuLATUS LeSucur. Grass Pickerel. Maumee 

 River ; Lake Erie. 



23. Esox LUCIUS Linnaeus. Northern Pickerel ; Pike. Lake 

 Erie; Sandusky River. 



24. Esox NOBiLiOR Thompson. Mascalonge. Ohio River; 

 Lake Erie. I have seen heads of large pike from several streams 

 in eastern Ohio and North-western Kentucky, said to have weighed 

 from thirty to forty pounds, and there were no specific differences 

 between them and those of the mascalonge of the Great Lakes. 



Family IX. — Anguillid^e* 



25 Anguilla anguilla (Linnaeus). Eel. Lake Erie ; Ohio 



River. 



Family X. — Gasterosteid^. * 



26. Eucall\ inco.n'stans (Ivirtland). Brook Stickleback. Cas- 

 talia Creek. 



Family XL — Aphredoderid^. * 



27. Aphredoderus SAYANUS (Gilliams). Pirate Perch. Lake 



Erie. 



Family XIL — Centrarchid^. 



28. PoMOXis ANNULARIS Rafinesque. New-light; Croppie. 

 Muskingum River ; Ohio River (Raccoon Island). 



29. AMBLOPLirES RUPEsi'Ris (Rafiucsque). Rock Bass. Lake 

 Erie; Ohio River (near L. Sandy R.). 



30. Lepomis NorATUs (Agassiz). Sun-fish. L. Miami River. 



31. Lepomis gibbosus (Linnaeus). Common Sun-fish. Ross 

 Lake; Lake Erie. 



Family XIII. — Percid.'e. 



32. ErwEOsroMA asprellus (Jordan). Rough Darter. Mus- 

 kingum River. 



