302 LAKE SUPERIOR. 



be counted there with a few rudiments ; the four rays of the centre, 

 bifurcated from the middle of their length, dichotomize anew at 

 their extremity jointly with the two adjacent rays above and below. 

 The anal begins beneath the third ray of the second dorsal and 

 terminates a little before this latter ; its form as well as its height 

 is about the same ; there are fourteen undivided rays in it. The 

 ventrals contain five simple- rays ; the first, intimately connected with 

 the second, is a little shorter. Their length is about five-eighths of an 

 inch. The pectorals are large and fan-like ; the rays, fifteen in num- 

 ber, are all undivided ; the longest occupy the upper third part of 

 the fin. They are only three-fourths of an inchlong, of course much 

 below the length of the head. 



Br. 6 ; D. viii.-18 ; C. 3-13.1 ; A. 14 ; V. I. 4 ; P. 15. 



The anus is situated exactly in the middle of the length, including 

 the caudal, which places it nearer to the insertion of this fin than 

 to the end of the snout ; it is bordered behind by a small, tri- 

 angular, membranous appendage which leans towards the anterior 

 margin of the anal. The body is completely naked and unprovided 

 with scales, as is the case in all species. The lateral line is very 

 distinct, it begins at the upper margin of the operculum, bends 

 slightly downwards, then rises to terminate in a straight line about 

 the middle of the second dorsal after having considerably approached 

 the back. A row of pores is arranged in a straight line, constantly 

 ascending until they are confounded with the back at the hinder 

 margin of the second dorsal, at a distance of three-eighths of an inch 

 from the insertion of the caudal. 



The color is a dark olive-colored brown on the whole surface of 

 the head and cheeks and all along the back. The lower half of 

 the sides is of a lighter tint. The abdomen and the lower face of 

 the head have a rather yellowish tint, dotted with very small black 

 spots. The lower jaw is sometimes completely black. The general 

 tint of the fins is the same as that part of the body to which they cor- 

 respond. The dorsals, caudal,anal and pectorals are barred trans- 

 versely with blackish spots. The ventrals have the same shade as 

 the abdomen. 



The characters which distinguish this species from C. cognatus 

 Richardson, are easily made out by comparing the description which 



