236 PISHES. 



jj. Spinous dorsal shorter than soft part, the spines 5 to 8 in 

 number, rapidly graduated; anal spines normally 6 ; body 

 compressed and rather elongate ; mouth large. 



POMOXYS, 15. 



/. MICROPTERUS, Lacepede. Black Bass. 



> Suro and Grystes, C. & V. 



= Calliurus, Raf. (not of Agassiz.) 



1. M. pallidas, (Raf.) Gill & Jor. Laege-Motjthed 

 Black Bass. Oswego Bass. Dull olive green, more 

 or less spotted when young but not barred; usually with 

 an irregular dark lateral band, and three oblique stripes 

 on opercles; ends of caudal fin blackish, these markings 

 growing obscure with age ; 3d dorsal spine twice as high 

 as first; notch between spines and soft-rays deep; eight 

 rows of scales between lateral line and dorsal; anal fin 

 somewhat scaly; mouth very wide; D. X, 12; A. Ill, 10; 

 lat. 1. 65 to 70. Great Lakes and rivers of the West and 

 South, abundant in most regions, and, like the next, 

 highly valued as a food fish. [Huro nigricans, C. & V. 

 G. nobilior and nigricans, Agass., M.floridanus (LeS.)] 



3. m, salmoides, (Lac.) Gill. Small-Motjthed Black 

 Bass. Moss Bass. Dark green; young brighter and 

 more or less barred and spotted, but without lateral 

 band; tail yellow at base, then black, and edged with 

 white; operole with oblique olivaceous streaks; third 

 dorsal spine half larger than first; dorsal notch rather 

 shallow; scales smaller than in the preceding— eleven 

 rows between lateral line and dorsal; mouth smaller; 

 anal nearly scaleless; D. X. 13; A. Ill, 11; lat. 1. 70 to 

 80. Great Lakes and streams from L. Champlain S. and 

 W. ; common in N. Y. and in most regions west of the 

 Alleganies; introduced eastward. [G. fasciatm, {L^s.) 



