PISHES OF NEW YORK 229 



lins dusky; that of the pectorals tinged with lemon yellow; ven- 

 trals dusky at the tip; anal pale; caudal pale except a narrow 

 dusky portion of the middle rays; eyes pearly with golden iri- 

 descence. The maxilla reaches about to front of eye. The 

 adipose dorsal extends straight backward, and its base is cov- 

 ered with a sheath of small scales -^g of an inch wide. The 

 gill rakers are 9 + 17, the longest f of an inch. Very small teeth 

 iire present on the tongue. The eggs are minute. 



In a male example, 17| inches long, received Nov. 16, 1895, 

 from Upper Saranac lake and nearly spent, no tubercles could 

 be seen on the scales; but several of the males from Canan- 

 daigua lake had them well developed. There is a great differ- 

 •ence in the development of the lingual teeth, some of our indi- 

 viduals showing only a trace of them, and it seems as if there 

 may be some relation between their condition and the sexual 

 maturity of the fish. For example, in a male 14 inches long, 

 sent from the fourth lake of the Fulton Chain Nov. 9, 1897, the 

 lingual teeth were present in a large patch; in three males, only 

 a little smaller but sexually immature, from Saranac lake Nov. 

 11, 1897, the teeth on the tongue could be perceived by the 

 touch only. The following measurements, in inches, and addi- 

 tional notes, were made from the fresh fish. 



MEASUREMENTS 



Leng'tli, including caudal 



Length of middle caudal rays (from end 

 of scales) 



Lengtli of upper caudal lobe ^horizon- 

 tally) 



Length of longest caudal ray 



Depth of body at dorsal 



Least depth of caudal peduncle 



Length of head 



Diameter of eye 



Length of maxilla 



Distance from snout to dorsal origin 



Length of dorsal base 



Length of longest doi'sal ray 



