PISHES OF NEW YORK 23T 



here for the first time announced as a member of the New York 

 fauna, and the description leaves no doubt of the correctness of 

 the identification. The fish examined, a female with ripe eggs,. 

 was taken in Canandaigua lake, Dec. 19, 1896, by Mr Annin's- 

 men. It was the only one caught, and was captured by becom- 

 ing gilled in the funnel of the net. Mr Annin is satisfied that 

 this is the lake shiner of the fishermen, which they sometimes 

 see in immense schools at the surface, and kill for trolling bait 

 by shooting them. 



128 Argyrosomus prognathus (H. M. Smith) 

 Long Jaw; Blouter ^ 



Coregonus prognathvs Hugh M. Smith, Bull, U. S. F. C. XIV, 4, pi. 1, fig. 3^ 

 1895, Lake Ontario, at Wilson N. Y. 



Argyrosomus lioyi Milnee, Rept. U. S. F. C. II, 86, 1874, Outer Island, Lake- 

 Superior, not of Gill. 



Argyrosomus prognathus Eveemann & Smith, Rept. U. S. F. C. XX, 314,. 

 pi. 26, 1896; Joedan & Etermann, Bull. 47, U. S. Nat. Mus. 471, 1896. 



Body oblong, much compressed, back elevated, tapering rather 

 abruptly toward the narrow caudal peduncle, the adult fish hav- 

 ing a slight nuchal hump as in 0. c 1 u p e i f o r m i s ; greatest 

 depth tjiree and one half to four in body length; head rather 

 short and deep, pointed, four to four and one third in length;, 

 greatest width half the length, cranial ridges prominent; snout 

 straight, its tip on level with lower edge of pupil; top of head 

 two in distance from occiput to front of dorsal; mouth large 

 and strong, maxillary reaching to opposite middle of pupil, two 

 and one half in head, length three times its width, mandible 

 long, projecting beyond upper jaw when mouth is closed, reach- 

 ing to or beyond posterior edge of eye, one and three fourths to 

 one and seven eighths in head; eye small, five in head, one and 

 one half in snout, one and one third in interorbital space, one 

 and one half in suborbital space ; gill rakers slender, about 

 length of eye, 13 above and 25 below angle. Adipose fin the 

 length of eye, its width half its length. Narrow^est part of cau- 

 dal peduncle contained nearly four times in greatest body depth. 

 Dorsal rather high, with nine or ten developed rays, the longest 

 one half longer than base of fin and contained one and three 



