Pamphlets on Biology; Kofoid Collection (2928 ) (English, German, Paperback)

Dieses historische Buch kann zahlreiche Tippfehler und fehlende Textpassagen aufweisen. Kaufer konnen in der Regel eine kostenlose eingescannte Kopie des originalen Buches vom Verleger herunterladen (ohne Tippfehler). Ohne Indizes. Nicht dargestellt. 1882 edition. Auszug: ...from the kindred genus by the development of a barbel at the end of each maxillary bone. The best known species is the Hybopsis kentuckiensis, popularly known as the horny-head, jerker, river chub, and Indian chub. It ranges from "Pennsylvania to Wyoming and Alabama, on both sides of the Alleghanies" and is "everywhere abundant in the larger streams, seldom ascending small brooks." It rarely attains a length of nine inches. The genus containing the largest eastern American species is named Scmotilus and differs from Leuciscus mainly in the fact that there is a little skinny flap called a barbel--and a very little one it is--v2lK near the hinder end of each upper jaw 1f or supramaxillary bone, and the dorsal fin is a little farther back; the pharynA gcal teeth of one side are also reduced Fig. 46-Pharyngeal bones and in number (2, 5--4, 2). teeth of Semotiius. After There are two very distinct species Baird. (S. atromaculatus and S. corporalis), mostly designated as chubs in the eastern states, but also known as dace and by various other names. A third more southern form (S. thoreauianus) is scarcely distinguishable from the S. atromaculatus. The fish generally called chub or, more specifically, silver chub, in the eastern states or New England and the Middle States, is a fish also named corporal, windfish, and fall-fish. Besides these, other English names given to Cyprinids have been misplaced upon it, as cheven or chivin (an English synonym of chub), dace, and roach. Its scientific name is Semotilus corporalis. It is by far the largest of the Eastern American Cyprinids and sometimes reaches the length of eighteen or even twenty inches, although one twelve inches long...