Cope.] '**'J [June 7, 



yy- Head five times in length ; occipital region strongly convex- 

 «. Ventral radii IX. 

 D. XIII. muzzle little prominent, dorsal truncate. 



P. ATJKEOLUS. 



D. XII. Muzzle projecting ; lips large. P. ckassilabris. 



^<^. Yentral radii X. 



D. XIII. Muzzle projecting, mouth inferior. D. free border deeply 

 incised. P. bkeyiceps. 



858. Ventral radii unknown. 

 D. XIV. Muzzle produced convex, mouth very small, back elevated. 



P. CONXJS. 

 Z?;?. Cj'lindric species. 

 D.XI, XII. Head one-fifth length ; sides lined. 



P. CEKVIKUS. 



63. Ptychostomus pappillostjs, Cope. 



Species nova. 



Body deeper than thick, the dorsal outline not at all elevated. Head 

 elongate not more than one-fourth the length to base of caudal, the Orbit 

 small and bordering the frontal plane. Preorbital region most elongate 

 in the genus ; muzzle truncate in profile ; the upper lip hanging free, the 

 lower deeply incised behind so as to be ^ shaped, and with the upper, finely 

 granular, not plicate. The muzzle very projectile, more so than in any 

 species of the genus. The top of the cranium is everywhere plane. Dorsal 

 fin truncate, with XII radii. Scales large, about as in P. collapsxjs, 

 Cope, i. e. 6 — 42 — 5. 



Color everywhere a silvery white, except some blackish shades at the 

 bases of the scales of the dorsal region. The fins, unlike those in most 

 other species, are pure white in life. They obtain one foot in length, and 

 do not exceed one pound in weiglit. 



This species is quite abundant in the Catawba and Yadkin Rivers, in 

 North Carolina, and is highly valued by the inhabitants as an article of 

 food. It is regarded as the best of the Catostomi for this purpose. It is 

 less frequently caught on a hook than some other species, but in the 

 autumn they come on the weirs in considerable numbers ; from these I 

 procured many specimens. The fishermen call it the " Shiner." Its char- 

 acters are very constant, and not likely to be confounded with those of any 

 of the known Ptychostomi. 



Ptychostomus velatus, Cope. 



Species nova. 



This is a stou.t species, with a short head, large eye, and more than 



usually elongate dorsal fin. Scales 5-6 42 5 ; head scarcely 4 times 



in length ; superior plane nearly flat ; orbit 3.75 times in length of head ; 

 1.5 times in interorbital width. D. XVI. with straight superior margin ; 

 V. IX. Upper lip pendent. Dorsal outline arched to the first dorsal ray 

 greatest depth 3.3 lines in length (exclus. caudal). Total length 11 

 inches. 



