48 TELEOSTEI : EVENTOGNATHI. — XII. 
bluntish; eye moderate ; C. lobes subequal; D. rather low, its 
longest ray less than base of fin. Coloration of preceding, the 
tail as well as lower fins always red. D. 13; depth 33. Great 
Lakes, etc. Sometimes confounded with the next, from which it 
is well distinguished, but it may intergrade with the preceding. 
(Lat., gilded.) 
cc. Dorsal faleate, the free margin deeply incised. 
83. M. crassilabre! (Cope). Form of a Coregonus, with deep, 
compressed body, small head, and sharply conic snout, which over- 
hangs the very small mouth; eye small, 5 in head. OD. high, the 
anterior rays 14 to 15 times base of fin; free margin of fin con- 
cave, so that the fin is decidedly faleate. C. lobes very unequal, 
the upper always longest; A. large, falcate, reaching beyond front 
of C. D.and C. bright red. Head 5 to 54; depth 31 to 34; 
lat. 1. 45. Ohio R.to N.C. (Plychostomus crassilabris, conus, and 
breviceps Cope; M. anisura Jor. & Gilb., not of Raf.) (Lat. 
crassus, thick ; labrum, lip.) 
bbb. Dorsal fin quite small, of 10 to 12 rays; lower lip thick, truncate 
behind. 
84. M.cervinum (Cope). Jump-rocks. Jumprnc MULLET. 
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 
pale blotch on each scale, these forming continuous streaks; back 
with brownish blotches; fins brownish, scarcely red. Head 5; 
depth 4. D.11. Scales 6-44 to 49-5. L.10 inches. Va. to Ga., 
not rare. (Lat., tawny, like a deer.) 
47. PLACOPHARYNX Cope. (dé, a broad surface ; 
gddpvy&, pharynx.) 
85. P. carinatus Cope. A large, coarse sucker, externally 
similar to the species of Moxostoma, from which genus it differs 
only in the remarkable development of the lower pharyngeals and 
their teeth; the bones are very strong, and 6 to 10 of the lower 
teeth are enlarged, little compressed, with a broad rounded or 
flattened grinding surface; the mouth is larger and more oblique 
than in M. macrolepidotum and the lips are thicker. Head broad 
and flattish above, its upper surface somewhat uneven; longest 
rays of dorsal longer than base of fin, 14 in head; free edge of D. 
concave ; upper 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 34. D. 12. Seales 
6-45-5. L. 30. Ohio to Ga. and Ark., abundant in larger 
streams. (Lat., keeled.) 
1 This description is from notes of Dr. C. H. Gilbert, taken from Ohio R. 
specimens. 
