FISHES OP NEW YORK 99 



Genus catostomus Le Sueur 

 Body elongate, fusiform, rounded, tapering anteriorly and 

 posteriorly; head long, with pointed snout; eye small, placed 

 high; suborbital bones narrow; fontanel present, large; mouth 

 rather large, inferior, upper lip thick, protractile, papillose, 

 lower lip greatly developed, with a broad free margin, usually 

 deeply incised behind, so that it forms two lobes which are often 

 more or less separated; mandible horizontal, short; opercles 

 moderate; pharyngeal bones moderate, their teeth shortish, 

 vertically compressed, rapidly diminishing in size upward; 

 scales comparatively small; typically much smaller and crowded 

 anteriorly; lateral line well developed, straightish; dorsal nearly 

 median, with from 9 to 14 rays; anal fin short and high, with 

 seven developed rays; ventrals inserted under the middle or 

 posterior part of dorsal, with 9 to 10 rays; caudal fin forked, 

 the lobes nearly equal. In males the fins are higher, and the 

 anal is swollen and tuber culate in the spring. Air bladder with 

 two chambers, the posterior large. Vertebrae 45 to 47. (After 

 Jordan and Evermann) 



56 Catostomus catostomus (Forster) 

 Long-nosed Sucker 



Cyprinus catostomus Foksteb, Phil. Trans. LXIII, 155, tab. 6, 1773. 

 Catostonnus hudsonius Ije Sueue, Jour. Ac. Nat. Sci. Phila. I, 107, 1817; 



GiJNTHER, Cat. Fish. Brit. Mus. VII, 13, 1868. 

 Catostomus longirostris JokdaiX, Bull. 12, U. S. Nat. Mus. 175, 1878; Jordan 



& Gilbert, Bull. 16, U. S. Nat. Mus. 126, 1883. 

 Catostomus nanomyzon Mather, App. 12th Rep't Adirondack Surv. N. Y. 



36, plate, fig. 1, 1886. 

 Catostomus catostomus Jordan, Oat. Fish. N. A. 17, 1885; Bean. Fishes 



Penna. 25, pi. 20, fig. 30, 1893; Jordan & Evermann, Bull. 47, IT. S. 



Nat. Mus. 176, 1896, pi. XXXII, fig. 77, 1900. 



The northern sucker has an elongate body, round and taper- 

 ing, with a long and rather slender head. The depth of the 

 body is contained about four and one half times in the length 

 and equals length of head. The snout is much longer than in 

 C. teres, considerably overhanging the mouth, which is large, 

 with thick coarsely tuberculated lips. Eye small, two fifths as 

 long as the snout and one sixth as long as head; its position 



