278 Bulletin 47, United States National Museum. 



inseparable as a species from N. whipplii, from which it differs in the 

 slenderer head and in the blue caudal streak, (niveus, snowy.) 



Hybopsis niveus, COPE, Proc. Amer. Phil. Soc. Phila., 1870, 460, Catawba River, North 



Carolina. 



Phoiogenis niveus, JORDAN & BRAYTON, Bull. U. S. Nat. Mus., xn, 20, 1878. 

 Cliola nivea, JORDAN & GILBERT, Synopsis, 180, 1883. 



Represented in the Santee Basin by 



447a. NOTROPIS NIVEUS CHLORISTICS (Jordan & Brayton). 



Head 4; depth 4; eye small, less than snout, 4 in head. D. 7; A. 8; 

 scales 5-36-3 ; teeth 1, 4-4, 1. Body short and deep, strongly compressed, 

 the form elliptical, as in N. pyrrhomelas, but rather deeper. Head rather 

 small and pointed. Mouth quite oblique, the maxillary not reaching line 

 of orbit, the upper jaw projecting beyond lower; preuiaxillary on level of 

 pupil. Lateral line decurved. Fins moderate. Nuptial tubercles cover- 

 ing the whole body, except space anterior to ventrals and below lateral 

 line ; those on the body much smaller than those on the head. Coloration 

 dark steel-blue ; a very distinct blue stripe along each side of caudal 

 peduncle ; back clear green ; lower part of sides abruptly milk-white ; 

 black dorsal blotch large, the lower part of the fin with bright pale-green 

 pigment, the tip milky ; caudal dusky, its tips milky, its base pale; anal 

 and ventrals milky, a faint dusky spot on last rays of anal ; iris white. 

 Females slenderer and less brightly colored ; no caudal spot. Length 3 

 inches. Santee River and tributaries ; common. This form occurs in the 

 Catawba with the typical niveus, into which it seems to intergrade ; both 

 forms are very close to N. ivhipplii, but should probably be considered dis- 

 tinct species. (^/\wp6f, green; IGTIOV, sail.) 



Codoma chloristia, JORDAN & BRAYTON, Bull. U.S. Nat. Mus., xn, 21, 1878, tributary of Saluda 

 River, Greenville, South Carolina. (Type, No. not given. Coll. Jordan & Brayton.) 

 Cliola chloristia, JORDAN & GILBERT, Synopsis, 183, 1883. 



448. NOTROPIS WHIPPLII (Girard). 



(SlLVER-FIN.) 



Head 41 ; depth 4 in adult males ; females and young more slender, 4 to 

 5; eye small, 4| in head. D. 8 ; A. 8 ; scales 5-38 to 40-3 ; teeth 1, 4-4, 1, 

 the edges more or less distinctly serrate. Body moderately elongate, 

 some what compressed, the dorsal and ventral outlines regularly and gently 

 arched. Head rather short and deep. Mouth rather small, quite oblique, 

 the lower jaw received within the upper when the mouth is closed. 

 Leaden silvery, bluish in the males; edges of scales dusky; a dark verte- 

 bral line ; a large black spot on the upper posterior part of the dorsal. 

 Paired fins and lower part of belly, as well as the tips of the anal and cau- 

 dal, and the front and upper parts of dorsal, charged with clear, satin- 

 white pigment in males in spring ; in full breeding dress the dorsal pig- 

 ment with a greenish luster ; no creamy band at base of caudal ; males 

 with the head and front covered with small tubercles. Length 4 inches. 

 Central New York, Cayuga Lake, to Minnesota, northern Alabama and 

 Arkansas, in clear streams ; very abundant in the Ohio Valley. (Named 

 for Captain A. W. Whipple, who collected the types.) 



