320 Bulletin 4J, United States National Museum. 



531. HTBOPSIS HTPSIKOTIS (Cope). 



Head 3f ; depth 4. D. 8; A. 8; scales 5-10-3; teeth 1, 4-4, 1. Body 

 stouter, more elevated, and more compressed than in R. rubrifronii. Head 

 short, broad above, much smaller and more conical than in H. ruhrifrons; 

 outline of back rather abruptly declining behind front of dorsal fin, so that 

 the base of the fin is oblique. Mouth inferior, horizontal, small, the max- 

 illary reaching line of orbit. Barbels small. Eye small, 3A in head. 

 Color silvery, with a double series of black specks along lateral line, and 

 a lateral baud of dusted blackish, which passes through eye and snout and 

 ends in a faint caudal spot ; males with the fins bright red, and the body 

 with a deep violet luster, as in Notropis ruhricroceus. Length 3 inches. 

 San tee Basin, in North Carolina and South Carolina ; rather rare. Resem- 

 bles Notropi8 procne, but has an evident barbel. (in/"-> high ; vurog, back.) 



Ceratichthys hypsinotjts, Cope, Proc. Amer. Phil. Soc. Phila., 1870, 458, tributaries of Catawba 

 River, McDowell County, North Carolina. (Coll. Cope.) Jordan & Beayton, Bull. 

 U. S. Nat. Mus., XII, 1878, 25, and Jordan & Gilbert, Synopsis, 215, 1883. 



582. HTBOPSIS RUBRIFROXS (Jordan). 



Head 4; depth 5. D. 8; A. 7; scales 5-36-3; teeth 1, 4-4, 0. Form of 

 Hyhopsis amhJops. Head long, narrower than in H. amhlops. Eye moder- 

 ate, 3i to 3i in head, wider than the interorbital space. Mouth small, 

 inferior, overhung by the bluntly decurved but not very broad muzzle ; 

 barbels quite long and distinct, 13 scales in front of the dorsal. 

 Fins well developed ; the first rays of the dorsal about twice height of 

 last. Pale olivaceous; sides with a plumbeous silvery band, in some 

 specimens forming a stripe through eye and snout, and a dark spot at base 

 of caudal ; cheeks silvery ; snout in males red, with numerous dust-like 

 tubercles; specimens in high spring coloration have the fins largely red. 

 Length 3 inches. Basin of the Altamaha, Georgia; common, (ruber, xqA; 

 frons, forehead.) 



Nocomis rubrifrotis, Jordan, Ann. Lye. Nat. Hist. N. Y., 1876, 330, Ocmulgee River, Flat 



Shoals, Georgia. (Type, Nos. 17863 & 20146. Coll. Jordan.) 

 Ceratichthys rubrifrons, Jordan & Gilbert, Synopsis, 214, 1883. 



533. HTBOPSIS AMBLOPS (Eafinesque). 

 (Silver Chub.) 



Head 4; depth 5. D. 8; A. 7; scales 5-38-4; teeth 1, 4-4, 1. Body 

 rather slender, somewhat heavy anteriorly, not much compressed. Head 

 large, flattened and broad above; eye very large, longer than snout and 

 longer than interorbital space, 3 in head. Mouth horizontal, subinferior, 

 and rather small; muzzle bluntly decurved; upper lip below level of 

 orbit ; maxillary not reaching line of front of orbit ; barbel evident. 

 Fins moderate. Lateral line somewhat decurved; sixteen scales before 

 dorsal. Color translucent greenish ; scales somewhat dark-edged ; sides 

 wuth a bright silvery band which overlies dark pigment, so that some- 

 times a plumbeous or even blackish band appears ; a dark baud through 

 eye around snout ; males without tubercles or red coloration. Length 2 



