No. VI.] NOTICES OF THE FISHES. 721 



than to the extremity of the snout. The motion of the snout, though greater than 

 that of the namay-peeth, is even in this species obscure. 



The mouth is larger than that of the namay-peeth, but placed farther back, and 

 when protruded to the utmost scarcely equals the extremity of the snout. The 

 lips are set with larger papillae and have broader flaps, The interior of the mouth 

 pharynx, branchiae, &c, do not differ from the same parts in the namay-peeth. — The 

 lining of the abdomen is covered with a pigment similar to that which clothes the 

 choroid coat of the human eye — This pigment is most abundant on the capsule or 

 the air-bladder. 



The. distribution and structure of the intestines, are the same as in the other 

 species, except that the spleen lies in the centre of the convolutions. The alimentary 

 canal is, to the length of the body as 47 to 17, or 3.4. to 1. 



The air-bladder consists of two portions, the lower of which communicates with 

 the oesophagus by a slender contracted tube. 



The fins strongly resemble those of the namay-peeth. The pectorals are upwards 

 of five times shorter than the body, and the tip of the anal, when turned back falls 

 short of the insertion of the caudal. In shape the anal is more obtuse and rounded 

 than the same fin of the namay-peeth ; — the caudal is not so deeply forked. 



B3. P17. Dll. V10. A mostly 8. C 18f. 

 The dimensions of an ordinary-sized fish were, 



Length to the caudal fin 17 inches. 



Circumference where greatest 12 



Depth 3| 



Length from snout to anus 13 



■ of alimentary canal 47 



The figure of C. communis, Le Sueur, in the work already cited, conveys a pretty 

 good general idea of the appearance of our fish, but the scales of the latter are 

 smaller, and the anal fin placed farther forward than in that species. 



The C. Forsterianus was considered by Forster to be only a variety of the C. 

 Hudsonius, but they are so distinct, that I imagine he mentioned it merely from the 

 information of the traders, without having seen even dried specimens. 



Catastqmus Lesueurii. 



Wawpawhawkeeshew, of the Cree Indians, Picconoo. Fur Traders. 



Gen. Cyprinus, Lin. Catastomus, Le Sueur. Sub-genus Leuciscus. Cuv. Reg. An. p. 194. 



The shape of this fish resembles that of the namay-peeth, but the lateral line 

 forms a larger curvature posteriorly and the tail is much more bent upwards. 



The colour of the back and sides is wood brown, reflecting, when moved in 

 the light, several brilliant tints, amongst which emerald-green, and gold- 



4 z 



