Family XX. Sci^enid^;. 203 



192. Haploidonotus grunniens Rafinesque. Fresh-water Drum; 



Gaspergou. 

 Aplodinotus grunniens Rafinesque, Jour, de Phys., 1819, 88; Ohio 



River. 

 Amblodon neglectus Girard, Proc. Acad. Nat. Sci. Phila., 1858, 167 ; 



Rio Grande: Girard, Mex. Bd. Sur., 12, pi. v, fig. 6-10, 1859; 



mouth of the Rio Grande; Matamoras, Tamaulipas. 

 Corvina oscula Giinther, Cat., 11, 297, i860. 

 Aplodinotus grunniens Jordan & Evermann, Bull. 47, U. S. Nat. 



Mus., 1896, 1484: Evermann & Goldsborough, Bull. U. S. Fish 



Comm., 1902, 154, fig. 4; Rio Usumacinta, Montecristo. 

 Larger streams and lakes of the Mississippi Valley and Great Lake 

 region, south to Chiapas. 







i\ v.. 



Fig. 65. Haploidonotus grunniens Rafinesque. 



No. 2364, U. S. Fish Commission. 



Head 3X; depth 2^ to 3^; D. x, 30; A. 11, 7; scales 9-55 to 60-12 

 or 13. Body oblong, the back much elevated and compressed; the 

 profile long, steep, and not much convex; head slightly compressed; 

 mouth moderate, subinferior, low; maxillary reaching to the vertical 

 from the middle of the eye ; snout 4 in head ; eye 4^3 ; interorbital 3^2 ; 

 dorsal fins connected; ventral with its first ray produced into a fila- 

 ment; caudal fin truncate; gill rakers short, thickish, 20 on the first 

 gill arch. 



Color grayish silvery, dusky above, with indications of two or three 

 darker bands over the shoulder ; a dark blotch on opercle ; dorsal and 

 caudal fins same as the body, the upper half of the membranes darker; 

 other fins pale. 



This species is a member of a large family inhabiting the sandy 

 shores of all seas, and is the only member of the family to which it 



