. Contributions to North American Ichthyology [microform] : based primarily on the collections of the United States National Museum. Ichthyology; Fishes, Fresh-water; Fishes; Ichtyologie; Poissons d'eau douce; Poissons. r I* ' C 4 i,v t. iljlj |i'#il|^i|â ;^' .1 r li!J" " fli jit 1 98 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGYâIII Early writers on fishes, as well ;is most foreign i(!htliyol(>gists considered the Suckers as iorming a mere tribe or subfamily of the Cyprinidce, which gioup has been variously denominated Catostomi, CatoNtomina, iuul Catoetomincc, but the chara
. Contributions to North American Ichthyology [microform] : based primarily on the collections of the United States National Museum. Ichthyology; Fishes, Fresh-water; Fishes; Ichtyologie; Poissons d'eau douce; Poissons. r I* ' C 4 i,v t. iljlj |i'#il|^i|â ;^' .1 r li!J" " fli jit 1 98 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGYâIII Early writers on fishes, as well ;is most foreign i(!htliyol(>gists considered the Suckers as iorming a mere tribe or subfamily of the Cyprinidce, which gioup has been variously denominated Catostomi, CatoNtomina, iuul Catoetomincc, but the charaeteis above noted, of teeth and mouth, seem to the writer to fully justify their separation as a djs. tiuct family TVe, dorsal fin in Cotosiomido' is more develojted than !â¢< usual in American C^prhiidfc, although various Old World genera show similar characters. The development of the lips and the great protme tility of the mouth are Icatuies usually diagnostic, but in the geiitis QuanNi'abia the mouth is scarcely i)!OtractiIe, and among our Cypri Hjdrt'certain species of Plunacobivft and Ceradchthys have thicker lips than have some of the Catostomidcc. The CatoHiomidw fall at once into three well-niaiked subfamilies, first indicated by Professor Gill, and termed by him Catostomincc, Cyclcptina. and Buhalichthjimw. These may be characteri:;ed as follows:â Caiostomino!.âBody oblong or elongate, subtcrete or more or less compressed: dorsal fin nearly median, short and subqnadrate, with from nine to eighteen developed lays: ventral fins under the dorsal,of nine or ten rays: anal fin high and short, normally of seven rays, iieurer the base of the caudal thiin that of the ventral fins : lips well developed, usually papillose or plicate: gill-rakers little developed. Genera Qiumi- labia, Plncopharijnjc^ Mi/xostoma, Urimyzou, Mimjfrcma, Ch<tsmistâ¬K,\ Catostomus, Pantonteus. Cijclepfhia'.âBody elongate, .slender : dorsal fin f'llciform, of about 3flj rays, beginning o
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