NOMENCLATURE AND MORPHOLOGY. 125 



and extends throughout the abdominal cavity ; it is full in front, 

 but is 2^''ii"tially subdivided into two small pouches behind ; 

 witliin it is bright yellow at its superior and posterior part. The 

 ovaries are suboval, rather broad, and unite in substance behind 

 before they open," — (Holbrook, Ich. So. Car. 25, 1855, and 2d 

 ed. 1860.) 



Grystes megastoma Garlick, 1857. — "This fish has been* 

 identified witli the common Black Bass (Grystes fasciatus) , but is 

 by no means the same fish, differing in many respects, both in its 

 habits and physical structure, and has not been described in any 

 work on American fishes, so far as I can learn. 



" The great distinguishing feature of this Bass is its immense 

 mouth, which has induced me to call it Grystes megastoma, or 

 large-mouthed Bass. 



"In its general form it resend)les the common Black Bass, 

 though somewhat thicker. The head is much larger in propor- 

 tion to its size, and if a vertical line be drawn, passing through 

 the center of the eye, we shall find that the end of the upper 

 jaw projects back or behind the line quite a distance ; whereas, 

 in the common Bass the jaw will not reach as far back as the 

 line. The scales are much larger, and thickly set over the gill 

 covers. Back, of a dark greenish, olive color, fading gradually 

 to white underneath. If found in dark-colored water, the white 

 will be tinged with a pinkish hue. A darkish mottled band, of 

 about half an inch in width, embracing the lateral line, traverses 

 the whole length of the body. 



"Br. rays, 6; Dor, 23: Sp. 9, Soft 14; A. 14: Sp. 3, Soft 

 11; C. 20; V. 6: Sp. 1, Soft 5; P. 13."— (Garlick, Treat. 

 Art. Prop. Fish. 108, 1857.) 



DiOPLiTES NUECENSis Girard, 1858.— "Body elongated, sub- 

 fusiform ; head constituting a little less than the third of the 

 entire length ; posterior extremity of maxillary extending to a 

 vertical line drawn i)osteriorly to the orbit ; scales on the cheeks 

 nearly equal in size to those on the gill covers ; origin of ventrala 



