CATOSTOMID^. — CIX. 317 



13. M. velata, (Cope) Jordan. Small-Mouthed Red 

 HoKSE. White Nose. Body stout, deep, compressed, 

 the back elevated, the depth 3 to 1 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. collajjsus and P. velatus, Cope.) 



gg. Dorsal moderate, with 13 to 14 developed rays 



7i. Head comparatively large, about 4 iu length; dorsal rays 

 usually 12. 



14. M. congesta, {Gvd.) Jordan. Tiiick-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. [JP. 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. 



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

 jecting beyond the very small mouth. 



16. M. coregonus, (Cope) Jordan. White-Fish Mul- 

 let. Broadly fusiform, the body being much com- 



