48 TELEOSTEI : EVENTOGNATIll. — XII. 



bliintish; eye moderate; C. lobes subequal ; D. ratlier low, its 

 longest ray less than base of fin. Coloration of preretling, the 

 tail as well as lower fins always red. I). l'.i ; dejith 3 J. Great 

 l^akes, ete. Sometimes confimnded with the next, from which it 

 is well distinguished, but it may intergrade with the preceding. 

 (Lat., •rilded.) 



cc. I>i)i>iil fiilcatc. tlio fn-c marjfin docply incised 



83. M. crassilabre ' (Cope). Form of a (Joregnmia, with deep, 

 compressed body, small head, and sharply conic snout, which o\er- 

 hangs the very small mouth; eye small, 5 in head. 1). high, the 

 anterior rays \\ to 1^ times base of fin; free margin of fin con- 

 cave, so that the fin is decidedly falcate. C. lobes very unecjual, 

 the upper always longest ; A. large, falcate, reaching beyond front 

 of C. D. and'C. bright red. Head 5 to 5^ ; depth 3} to 3^; 

 lat. 1. 45. Ohio II. to N. C. (Pli/choslomus crnssilahris, comts, and 

 brericeps Cope; M. auisura Jor. & Gilb., not of Kaf.) (Lat. 

 crns.SH.s-, thick ; lahrum, lip.) 



bbb. Dorsal fin quite small, of 10 to 12 rays; lower lij) tliiik, truncate 

 l)t'liin(l. 



84. M. cervinum (Cope). Ji'MP-ROCKS. Ji'mtinm; Millet. 

 Head very short, rather pointed ; mouth rather large, the lips 

 strongly plicate ; eye small ; fins all small ; free edge of dorsal 

 straight, its longest ray less than head. Color greenish brown, a 

 ])ale blotch on each scale, these forming continuous streaks; back 

 with brownish blotches; fins brownish, scarcely red. Head 5; 

 depth 4. I). 11. Scales 6-44 to 49-5. L. 10 inches. Va. to Ga., 

 not rare. (I.,at.. tawny, like a deer.) 



47. PLACOPH.VRYNX Cope. (rrXaf a broad surface ; 

 (f)dpvy$, pharyn.x.) 



85. P. carinatus Cope. A large, coarse sucker, externally 

 similar to the species of Moxostoma, from which genus it ditlers 

 only in the remarkable development of the lower pharyngeals and 

 thi'ir teeth; the bones are very strong, and G to 10 of the lower 

 teeth are enlarged, little compressed, with a broad rounded or 

 flattened grinding surface; the mouth is larger and more oliliipie 

 than in M. vmcrolepiilolum and the lips are thicker. Heatl bmad 

 and llattish above, its up])er surface somewhat uneven; longest 

 rays of dorsal longer than base of fin, 1^ in head; free edge of I), 

 concave ; uj)per lobe of C. narrower than lower, and more or less 

 longer. Color dark olive-green, the sides brassy ; no silvery lustre ; 

 C. and lower fins orange-red. Head 4; depth 3 J. I). 12. Scales 

 6-45-5. L. 30. Ohio to Ga. and Ark., abundant in larger 

 streams. (Lat., keeled.) 



> Thia description in from notes of Ur. C. II. Gilbert, token from Ohio K. 

 speciinens. 



