Smithsonian miscellaneous collections . Fig. 44.—Horny Head, Hybopsis kentuckiensis. After Goode. and habits and to ascertain whether the analogous structures areadaptive to identical or different conditions. Cope evidently assignedtoo much relative importance to the character by giving to itsubfamily rank and isolating the genus from all others. 304 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vol. 48 Closely related to Notropis is the genus Hybopsis which includesnearly a score (seventeen) of species. Like Notropis it has aprincipal row of four pharyngeal teeth, and in some a single toothrepresent
Smithsonian miscellaneous collections . Fig. 44.—Horny Head, Hybopsis kentuckiensis. After Goode. and habits and to ascertain whether the analogous structures areadaptive to identical or different conditions. Cope evidently assignedtoo much relative importance to the character by giving to itsubfamily rank and isolating the genus from all others. 304 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vol. 48 Closely related to Notropis is the genus Hybopsis which includesnearly a score (seventeen) of species. Like Notropis it has aprincipal row of four pharyngeal teeth, and in some a single toothrepresents a second row, but sometimes there is none (4—4 orI, 4—4, I or I, 4—4, o), and the teeth are essentially like those ofNotropis; it differs from the kindred genus by the development ofa barbel at the end of each maxillary bone. The best known species is the Hybopsis kentuckiensis, popularlyknown as the horny-head, jerker, river chub, and Indian chub. Itranges from Pennsylvania to Wyoming and Alabama, on both.
Size: 1494px × 1672px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience
