88 FISHES OF MASSACHUSETTS. 



C. gibbosus. Le Sueur. The gibbous Sucker. 

 Journal Academy Nat. Sciences, vol. i. p. 92, et fig. 



I have never met with this species, which Le Sueur " dis- 

 covered in the river Connecticut, near Northampton, where it 

 is called Chub Sucker" and therefore extract his description, 

 from the " Journal of the Academy of Natural Sciences of 

 P hilar] e Ip hia . ' ' 



" Back elevated in front of the dorsal fin, which is almost as 

 high as hroad, and rounded ; anal fin bilobated. Head 

 nearly as high as long ; snout short, roundish ; tail straight ; 

 caudal fin semi-lunated, lobes roundish, the inferior one longer 

 than the upper ; scales very much crowded transversely a short 

 distance from the opercula, but more developed on the rest 

 of the body ; the color of the back is a deep blue, with golden 

 reflections ; pectoral, ventral and anal fins of a fine reddish 

 orange color ; caudal fin tinted with carmine and violet ; dor- 

 sal fin bluish green ; abdominal scales red at their base ; lateral 

 line hardly perceptible ; body marked with four or five faint 

 transverse bands. Length of specimen eleven inches. 



P. 16 ; D. 17 ; V. 9 ; A. 9 ; C. 18 rays. 



Dr. Mitchell's description of the ' Cyprinus oblongi^ ap- 

 proaches to this ; . but there are important characters in my 

 species, not noticed in that of the former, which preclude a 

 conclusion that they are the same ; therefore, as the matter 

 now stands, I must consider the above a nondescript." 



Leuciscus. Klein. 



Generic characters. The anal fin short, as well as the dor- 

 sal, but without strong rays at the commencement of either ; 

 no barbules at the mouth. 



L. crysoleucas. Mitchell. The New York Shiner. 



Trans. Lit. et Philosoph. Soc. N. Y. vol. i. p. 459. 

 Fauna Boreali -Americana, p. 122. 



