750 



FISHES — INTKODTTCTION. 



The State of Ohio includes two well defined faunal areas, so far as its 

 fishes are concerned. These are Lake Erie and its tributaries on the 

 north, and the Ohio River and its tributaries on the south. Of about 

 163 species found in the waters of the State, about 40 may be considered 

 characteristic of the Lake fauna, seldom being found in tributaries of the 

 Ohio. A large number, about 67, belong properly to the Ohio River 

 fauna, the remaining 56 being common to both. The species found in the 

 lake number therefore about 96, and those in the river, about 123. In 

 nearly every case where a species is common to both faunse, northern or 

 lake specimens will be found to be deeper in body and deeper in color 

 than the southern or river specimens. Some of the species belonging 

 properly to the lake region occur in the headwaters of the Scioto, Miami, 

 etc. I suppose this to be due to the fact that the watersheds in the State 

 are sometimes low and swampy, permitting at times the interchange of 

 fishes. Why these species do not spread southward is not explained, 

 but this is probably due to something in the water or the climate. 



Of species belonging especially to the Lake fauna, we may enumerate 

 the following : 



Acipenser rubionndns, 

 Amiurus catus, 

 Carpiodes thompsoni, 

 Catostomus longirostris, 

 Couesius prostliemms, 

 Ehiniclithys oataraotse, 

 Hndaonins storerianus, 

 Telestes elongatus, 

 Coregonus quadrilateralis, 

 Coregontis clupeiformls, 

 Coregonus hoyi, 

 Coregonus artedi, 

 Coregonus nigripinnis, 



Coregonus tulUbee, 

 Cristivomer namayoush, 

 Percopsis guttatus, 

 Esox nobilior, 

 Encalia inconstans, 

 Pygoeteus ocoidentalis, 

 Lota macnlosa, 

 Uranidea spilota, 

 Triglopsis thompsoni, 

 Eupomotus aureus, 

 Perca americana, 

 Microperca punctulata, 

 Boleiohthys eos. 



Of species characteristic of the Ohio River fauna, the following may be 

 mentioned : 



Soaphirhynoliops platyrhynohns, 

 Polyodon folium, 

 Litliolepis spatula, 

 Noturns flavus, 

 Pelodichthys olivaris, 

 Amiurus xanthooeplialus, 

 Amiurus melas, 

 lohthselnrus robustus, 

 loththselurus furcatus, 

 lohthyobus bubalus, 

 Bubaliclithys urns. 



Minnilus ariommus, 

 Minnilus soabi;ioeps, 

 Ly thrums dlplfemius, 

 Hudsonius stramineus, 

 Pomolobus chrysochloris, 

 Dorosoma cepedianum, 

 Centrarohus viridens, 

 Xenotis lythrochloris, 

 Lepomis anagallinus, 

 Lepomia macroohirus, 

 Etheostoma so[uamioep8, 



