. Contributions to North American Ichthyology [microform] : based primarily on the collections of the United States National Museum. Ichthyology; Fishes, Fresh-water; Fishes; Ichtyologie; Poissons d'eau douce; Poissons. Jhjdropldox rubricroceus, Photiujenisgalacturm^ and Catostomus xidnhium both in the Tonnesst'o and ISiiviinnah, will iihistiate tliis. Ncitlicroi iij two liist-named species are as yet known iroui any other river liasius, VI. Wlien the wateished between two streams is a swampy iiiilam instead of a nionntaiuvang"., the same species may be louiid in the lnaiij waters of both
. Contributions to North American Ichthyology [microform] : based primarily on the collections of the United States National Museum. Ichthyology; Fishes, Fresh-water; Fishes; Ichtyologie; Poissons d'eau douce; Poissons. Jhjdropldox rubricroceus, Photiujenisgalacturm^ and Catostomus xidnhium both in the Tonnesst'o and ISiiviinnah, will iihistiate tliis. Ncitlicroi iij two liist-named species are as yet known iroui any other river liasius, VI. Wlien the wateished between two streams is a swampy iiiilam instead of a nionntaiuvang"., the same species may be louiid in the lnaiij waters of both, jilthouj^li the sjjecies inhabiting? the lower coursis may h] dillerent. In case the one stream Hows northward and the otliei soi ward, the common fauna will be nearest like that of the northein strtanii In Northern Indiana, the same species are found in the waters of Saiiii Joseph's, Maumee, Wabash, and Illinois Rivers, alttiouyh these stica dischar};e their waters in widely aln'linus J'oit'.imilii J'Jricymha bnccita, Scinotilits corporalis, Chronomnn ert/tlir(>(\ i!ii species of Rhiuirhtln/i<, etc. Of channel spe<!ies, Jlaploidonoti'N, Ihjml i Dorosoma, romolobun, Poccvs chri/sopH, all the " Unllalo fishes'', iiiul tli| larger Siliiridw, IchUuvlurus i)inicioiuK, JU'l<i<liclilln/s (ilicaris, Amuia 7ii(/i icons, and the like, will serve as examples. VIII. ^lany sp«'cies inhabiting the upjier course of a stream ar.' dillii out from those of the lower. This sulije<!t has been ably disciisscdl Professer Cope, but I'urthei' investigations, especially of the rivers ot tlij Southern â Htates, are very desirable. IX. This diilerence between the upper fauna and the lower is (liic t| ditlerencL's in the character of the river itself, such as climate, coiKliiii of water, character ot river-bed, supi)ly of food, etc. X. Hence, if in the same river basin there are two streams liowiiJ into a larger stream, the one near its source, the other near its inoiit
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Keywords: ., bookce, bookdecade1870, booksubjectfishes, booksubjectichthyology
