. Fishes. Fishes. Series Ostariophysi 085 forms. There is some evidence that the group is derived from Asia through western America, the Pacific Coast forms being much nearer the Old World types than the forms inhabiting the Mississippi Valley. Not many Cyprinidaz are found in Mexico, none in Cuba, South America, Austraha, Africa, or the islands to the eastward of Borneo. Many species are very widely distributed, many others extremely local. In the genus Notro- pis, each river basin in the Southern States has its series of different and mostly highly colored species. The presence of Notropis n
. Fishes. Fishes. Series Ostariophysi 085 forms. There is some evidence that the group is derived from Asia through western America, the Pacific Coast forms being much nearer the Old World types than the forms inhabiting the Mississippi Valley. Not many Cyprinidaz are found in Mexico, none in Cuba, South America, Austraha, Africa, or the islands to the eastward of Borneo. Many species are very widely distributed, many others extremely local. In the genus Notro- pis, each river basin in the Southern States has its series of different and mostly highly colored species. The presence of Notropis niveus in the Neuse, Notropis pyrrhomelas in the Santee, Notro- pis zonistius in the Chattahoochee, Notropis callistius, tri- chroistius, and stigmaturus in the Alabama, Notropis whipplei in. Fig. 295.—Silverfin, Notropis whipplei (Girard). White Eiver, Indiana. Family Cyprinidos. the Mississippi, Notropis galacturus in the Tennessee, and Notro- pis cercostigma in the Sabine forms an instructive series in this regard. These fishes and the darters (Etheostomina:) are, among American fishes, the groups best suited for the study of local problems in distribution. Species of Dace and Shiner.—Noteworthy species in other genera are the following: I^argest and best known of the species of Notropis is the familiar shiner or redfin, Notropis cornutus, found in almost every brook throughout the region east of the Missouri River. Campostoma anomalum, the stone-roller, has the very long intestines six times the length of its body, arranged in fifteen coils around" the air-bladder. This species feeds on mud and spawns in little brooks, swarming in early spring throughout. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Jordan, David Starr, 1851-1931. New York, H. Holt and Company
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