194 Bulletin 47. United States National Museum. 



and southward to North Carolina. It seems in some respects interme- 

 diate between M. aureolum and M. crassilabre, but we can not at present 

 identify it with either. (naKpoheTudoToq , large-scaled.) 



Catostomus macrolepidotus,* LE SUEUR, Jour. Ac. Nat. Sci. Phila., 1, 94, 1817, Delaware River. 

 Ptychostomm lachrymalisrf COPE, Proc.Am.Phil. Soc.Phlia., 1870,474, Neuse River, at Newbern, 

 N.C. 



317. MOXOSTOMA CRASSILABRE, (Cope). 



Body robust, the back elevated and compressed. Head short, broad, 

 flattish above, mouth moderate, the lips full ; lower, truncate behind ; 

 snout short, little projecting. Scales large, 5-44-5. Dorsal rays usually 

 13. Head 5 ; depth 3i ; dorsal fin elevated in front, its edge much incised ; 

 its first soft ray longer than the base of the fin and about as long as head. 

 Caudal lobes equal. Color silvery, with smoky shading above, some of 

 the scales blackish at their bases ; anal and caudal with some red ; top of 

 head, humeral bar, and a broad shade across dorsal fin, dusky. Streams 

 of eastern North Carolina, our specimens from Little River at Goldsboro, 

 a tributary of the Neuse. (crassus, thick ; labrum, lip.) 



Ptychoslomus crassildbris, COPE, Proc.Am.Phil. Soc. Phila., 1870, 477, Neuse River, Raleigh. 

 Moxostoma crasnldbre, JORDAN & GILBERT, Synopsis, 140, 1883. 

 Moxostoma crassilabre. JORDAN, Bull. U. S. Fish Com. for 1888, 128. 



318. MOXOSTOMA LESUEURI, (Richardson). 

 ( PICCONOU.) 



A species from the far north, allied to M. breviceps, with short head 

 and small mouth. As it is unknown to us, we copy from Richardson the 

 following " description of recent specimens at Cumberland House, April, 

 1820: 



"Color: Back, sides, and gill covers wood brown, reflecting when 

 opposed to the light many brilliant tints, in which emerald green and 

 gold yellow predominate ; bases of the scales bluish gray, producing an 

 appearance of reticulation; belly reddish white. The dorsal has the hue 

 of the back with a reddish margin, the other fins are almost entirely red. 



" Scales large, quadrangular with parallel sides and irregularly curved 

 ends; their length and breadth nearly equal. Except in the pectoral 

 region, where they are small, their size when in situ appears nearly the 



* C. macrolepidotus. "Dorsal fin short, greatly hollowed, upper lobe elevated and pointed, 

 lower lobe rounded. Body a little compressed and fusiform, elevated on its anterior part, 

 rounded near the nape ; head somewhat declivous and longer than deep ; anal fin straight, long, 

 and passing the base of the caudal; pectoral and abdominal fins small; caudal fin forked, with 

 pointed lobes, and of a gray color; dorsal, anal, and ventral fins tinted with blue and yellow ; 

 scales large and disposed in a lozenge form ; color of the back dark blue, base of the scales 

 brown ; sides whitish, with yellow reflections ; opercula yellowish ; head reddish brown ; the 

 lateral line vises at the nape of the neck, descends along the gill cover, and thence to the tail 

 in a line with the center of the eye. Found in the river Delaware. P. 18. D.16. V.9. A. 9. 



C. 18 f rays." Le Sueur. 



t M. lachrymale is said to resemble the common Red Horse. The cranium, with oblique 

 superopercular region and elevated vertex, with a ridge on each side as in M. macrolepidotum. 

 Premaxillary spines forming a distinct projecting nose ; mouth inferior, but large, the lips large 

 and thick. Eye small, 2 in interorbital space. Back gently arched. Depth 3% in length. 



D. 12 or 13. Olivaceous, scales pale or smoky at base; lower fins white. Neuse River. (Cope.) It 

 is probably identical with M. macrolepidotum. 



