156 FISHES OF MASSACHUSETTS. 



portion rounded, gradually diminishing in height, as it ap- 

 proaches the tail. 



The Pectorals are somewhat rounded at the extremities ; 

 one inch two lines high ; three lines long. 



The Yentrals are narrow, five lines long ; attached to the 

 helly by a membrane extending from the inner ray. 



The Anal fin commences a short distance back of the dorsal ; 

 of a similar lorm with that fin. 



The Caudal fin is nearly straight at its extremity ; three 

 lines long, six lines high ; the distance between the extremities 

 of the fin rays, is equal to their height. 



The fin rays are : D. 32 ; P. 24 ; V. 4 ; A. 30 ; C. 18. 



This species is smaller and lighter colored than the " Re- 

 Tnora" and differs in the number of its lamina in the disk. 

 Without dwelling upon the less important distinctions, I con- 

 ceive that the individual 1 have here described must be con- 

 sidered a new species. 



