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<br />12 Foreign Nonindigenous Carps and Minnows (Cyprinidae) in the U.S.-A Guide to their Identification <br /> <br /> <br />Figure 8. Keel of Rudd. Note: The native morpho- <br />logically similar Golden Shiner has a similar keel <br />(see fig. 49, p. 68). <br /> <br />9a. Pored scales in lateral line 35-45; origin of anal fin posterior to dorsal fin base; membranes <br />of dorsal and anal fin of adults without red pigment; midlateral stripe on caudal peduncle <br />absent; body cylindrical; adults often over 1 m TL.....................................................................Go to 10 <br /> <br />9b. Pored scales in lateral line fewer than 12; origin of anal fin beneath dorsal fin base; membranes <br />of dorsal and anal fins of adults with red pigment; distinct midlateral stripe present on caudal <br />peduncle; body compressed, deep; adults rarely over 11 cm TL. <br />.................................................................................................. Bitterling (Rhodeus sericeus) Page 63 <br /> <br />lOa. Pharyngeal teeth elongate, with prominent grooves or serrations on grinding surfaces, hooks <br />sometimes present, teeth typically 2,5-4,2 (fig. 9A); body typically olivaceous or silvery-white, <br />may be olive-brown above and silver to white below; most fins only lightly pigmented (dusky), <br />never black; lining of body cavity (peritoneum) silvery with dark mottling, large areas may be <br />darkly pigmented (fig. lOA); 12-16 rakers on first gill arch. <br /> <br />................................................................................. Grass Carp (Ctenopharyngodon idella) Page 31 <br /> <br />lOb. Pharyngeal teeth massive, molar-like, without hooks, generally smooth (not serrated or grooved), <br />with wide masticatory surfaces, teeth typically in a single row with four or five on each side <br />(fig. 9B), but two rows present in some individuals (in which case the outer row usually <br />consists of a single small tooth, or very rarely two); body usually dark, often blue-gray or <br />black, white or cream below; fins darkly pigmented, almost black; lining of body cavity <br />(peritoneum) typically black (fig. lOB); 14-23 (usually 18-21) rakers on the first gill arch. <br />.................................................................................. Black Carp (Mylopharyngodon piceus) Page 59 <br /> <br />~ <br />