CATOSTOMID^E. CIX. 317 



13. M. velata, (Cope) Jordan. SMALL-MOUTHED RED 

 HOUSE. WHITE NOSE. Body stout, deep, compressed, 

 the back elevated, the depth 3 to 4 in length; head 

 short, heavy, flattish and broad above, thick through the 

 cheeks, 3f to 4^ in length; eye rather large, midway in 

 head, 4 to 5 in its length; muzzle rather prominent, 

 bluntish, overhanging the very small mouth; fins very 

 large; dorsal long and high, its height five-sixths the 

 length of the head; pectorals nearly reaching ventrals; 

 color silvery, smoky above; lower fins red; size large. 

 Great Lakes to North Carolina and Alabama, -ather com- 

 mon. (P. collapsus and P. velatus, Cope.) 



gg. Dorsal moderate, with 12 to 14 developed rays 



h. Head comparatively large, about 4 in length; dorsal rays 

 usually 12. 



14. M. congesta, (Grd.) Jordan. THICK-HEADED MUL- 

 LET. Head short and very wide through the opercles, 

 flat above; body stout, the back somewhat elevated; 

 depth 4 in length; muzzle sub-truncate, slightly project- 

 ing; scales 6 40 5; olivaceous, silvery below; dorsal 

 fin dusky. Missouri River and S. (P. bucco, Cope.) 



15. M. pidiensis, (Cope) Jordan. MULLET OF THE 

 GREAT PEDEE. Head rather long, 4 in length, flattish 

 above; body elongate, more nearly cylindrical, little 

 compressed; muzzle truncate; olivaceous, sometimes 

 with rows of faint spots along the series of scales; dor- 

 sal and caudal fins black-edged; size quite small; resem- 

 bles M. cervina, but the mouth entirely different. Great 

 Pedee River. 



M. Head very small, about 5 in length ; muzzle conic, much pro- 

 jecting beyond the very small mouth. 



16. M. coregonus, (Cope) Jordan. WHITE-FISH Mri.- 

 LET. Broadly fusiform, the body being much com- 



