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Headwater Chub
The headwater chub (''Gila nigra'') is a species of fish in the family Cyprinidae. It is found in Arizona and New Mexico. Description The body of the headwater chub is thick and chunky to streamlined but not markedly attenuate. The maximum size of the male fish is about 50 cm females are about 10–18 cm total length. The coloration of the fish is dark olive-gray or brown above, with a silver side, and white below. The longitudinal stripes are often diffuse, and are rarely with dark dorsal-lateral blotches. The caudal peduncle is not pencil-like, its length is less than its head length; the fins are small to moderate in size, sometimes convex, and are rarely curved, with inter-radial membranes of fins variously pigmented. Scales are developed and cover the entire body, with the basal radii variable. There are 73-83 lateral scales, with usually 8 dorsal and anal fin rays, and rarely 7 or 9 fin rays.Minckley, W.L. and B.D. DeMarais, 2000. ''Taxonomy of Chubs (Teleostei, Cyp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Drinker Cope
Edward Drinker Cope (July 28, 1840 – April 12, 1897) was an American zoologist, paleontologist, comparative anatomist, herpetologist, and ichthyologist. Born to a wealthy Quaker family, Cope distinguished himself as a child prodigy interested in science; he published his first scientific paper at the age of 19. Though his father tried to raise Cope as a gentleman farmer, he eventually acquiesced to his son's scientific aspirations. Cope married his cousin and had one child; the family moved from Philadelphia to Haddonfield, New Jersey, although Cope would maintain a residence and museum in Philadelphia in his later years. Cope had little formal scientific training, and he eschewed a teaching position for field work. He made regular trips to the American West, prospecting in the 1870s and 1880s, often as a member of United States Geological Survey teams. A personal feud between Cope and paleontologist Othniel Charles Marsh led to a period of intense fossil-finding competition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
