310 LAKE SUPERIOR. 



are straight. The anterior margin of the anal is opposite to that of 

 the second dorsal, but its insertion is an eighth of an inch less, and 

 it is at least as high, if not higher ; its terminal margin is more 

 convex ; the greatest rajs occupy the anterior third part ; the first 

 is undivided ; the anterior margin is rounded, the posterior short 

 and straight ; here are twelve rays. The ventrals have, as usual, 

 six rays, the first undivided ; their insertion is a little behind the 

 pectorals ; their length exceeds three-eighths of an inch ; they are 

 elongated and terminated in a point, which exceeds the posterior 

 extremity of the pectorals. These latter are somewhat longer than 

 the ventrals, and are composed of fourteen rays, the longest of which 

 occupy the centre. The base of these fins measures an eighth of 

 an inch. When expanded, the rays arrange themselves in the form 

 of a fan, with a regularly rounded circumference. 



Br. 6 ; D. XIV-15 ; C. 9-17.9; A. 12 ; V. I. 5 ; P. 14. 



The body is barred with black transverse bands, extending from 

 the back towards the sides. They are alternately longer and shorter. 

 None are found on the last third of the sides, which has the color of 

 the abdomen and the lower part of the head. The fins partake of 

 the color of the region of the body to which they belong. Above, 

 the head is finely dotted with black. 



The few individuals of this species which we have procured were 

 caught at the Pic. 



Gasterosteus nebulosus, Agass. 

 Plate IV., fig. 4. 



The determination of this species has caused us much trouble, 

 from its great resemb'ance to Gast. occidentalis Cuv., Gr. concinnus 

 Richards., and even to Cr. pimgitius of Europe, with which the 

 preceding species are compared in the descriptions of authors. 

 Another difficulty occurred to us, and rendered the synonymy of (r. 

 occidentalis Cuv. very complicated, from Dekay having referred to 

 this fish an analogous species of the State of New York, which differs 

 from it ; the same which we find again in Massachusetts, and which 

 Dr. Storer identifies with Q. pungitius L. After a minute com- 



