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GENUS CYPRINUS. 9z 



cated to me, by Dr. Hunt, of Northampton, in the state 

 Connecticut. It inhabits the river Connecticut; is rare, 

 and, in consequence of its insignificant appearance, is held 

 in no esteem as an article of food. It is said to affect so- 

 litary situations, and to be a suspicious, wary fish. 



Description of a new species of the genus Cyprimis. By 

 Mr. Le Sueur. Read August 19, 1817. 



C Y p R I N us inaxillingua. Colour of the back brownisli 

 olive, sides blue, with a brownish band; a black spot at the 

 base of the caudal Jin; lower parts silvery gray; the body 

 is thick; on the back, near the head, the scales are very 

 small, they are larger on the sides; the snout is very short, 

 broad and convex; the mouth is not furnished with lips, 

 in the manner of some others of the genus: the upper 

 jaw is large, fixed, and covers the lower jaw, which, 

 on a superficial view, appears to want the os maxillare^ 

 but on a close examination it will be found that this bone 

 is enclosed in a kind of cartilaginous, unretractile tongue^ 

 which projects from the mouth in a subarcuate manner; on 

 each side of this tongue there is a muscular lobe, which 

 admits of the free expansion of the mouth; the true tongue 

 is not apparent; the head is large, and, with the opercula 

 branchiostega, is deprived of scales; the eyes are of a mid- 

 dling size, pupil black, iris yellowish white: the lateral 

 line has its origin at the upper part of the gill-cover, curves 

 regularly to the middle of the body, and descends thence, 

 in nearly a straight line, to the tail; the dorsal fin is large, 

 quadrangular, and situate in the centre of thebody, oppo- 

 site to the ventraly the roundish extremity of which ex- 



