58 HISTORY OF THE FISHES OF MASSACHUSETTS. 



and is composed of soft rays, with the exception of the first, whose height is about 

 two thirds that of the next. This fin is longer than high. 



The pectorals are quite broad when expanded ; in height they are equal to the 

 lensth of the second dorsal. 



The ventrals are just back of the pectorals ; their height is equal to that of the 

 pectorals. 



The anal arises on a line with the fifth ray of the second dorsal. Its height and 

 length are equal. It terminates on the same plane with the second dorsal. The 

 second spinous ray is very stout. 



The caudal is considerably emarginated ; the depth at its base is equal to half the 

 depth of extremity when expanded. 



The fin rays are as follows : — D. 9. 1 - 12. P. 15. V. 1 -5. A. 3- 9. C. 17f. 

 Length 12 to 15 inches. 



Remarks. This species is brought to Boston market in the spring and autumn, from 

 the mouths of the neighboring rivers, and the ponds to which the sea has access. 



By the fishermen it is known as the " White Perch." Its usual weight is about half 

 a pound. December 12th, 1837, I saw a specimen in Boston market which measured 

 fifteen inches in length, and weighed one pound and three quarters, and its stomach 

 contained a specimen of the shiner, Leuciscus chrysoleucas, more than five inches long. 



Found in New Brunswick, Perley ; Maine, Massachusetts, Storer ; Connecticut, 

 Atres, Linsley ; New York, Mitchill, Cuvier, Dekay ; South Carolina, Dekay. 



Although the Labrax pallidus of Dekay was introduced in my " Synopsis " as belonging 

 to this State, I am inclined to think the two species above described to be the only ones 

 we possess ; and that perhaps the pallidus and rufus may prove to be one and the same. 



GENUS III. CENTROPRISTES, Cuv. 



A single dorsal fin ; branchiostegous rays seven ; all the teeth small and crowded ; 

 no canines. Their preoperculum is dentated, and the operculum spinous. 



Centropristes varius, Storer. 

 The Black Sea-Bass or Perch. 



(Plate II. Fig. 4.) 



Perca ■carta, Mitchill, Trans. Lit. and Phil. Soc. of N. Y., i. p. 415, pi. 3, fig. 6. 



Centropristes nigricans, Griffith's Cur , x. p. 1J7. 



Le Cenlroprisle noir, Centropristes nigricans, Cdt. et Val., hi. pp. 37, 44. 



