1887.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 245 



these have a strikiug resemblance to Notropis topclm Gilbert, but a 

 close examination reveals several important diflerences. The teeth are 

 1, \-i. 1; the head much deeper than in X. topc/ca; the snout, viewed 

 from the side, not nearly so pointed, and the anal rays, 9. Head in 

 length to caudal, 4^; its depth at the occiput nearly equal to its length; 

 mouth moderate, the maxillary reaching to a i)erpendicular from the 

 front of the orbit; the gape quite oblique; snout shorter than the eye, 

 which is contained in the length of the head 3 times; teeth 1. 4-4. 1, 

 with hook and triturating surface, whose bounding edges are distinctly 

 serrated; depth in length, 4; the body considerably compressed; dorsal, 

 S; anal, 9; the dorsal being inserted just behind the ventrals; scales 

 in the decurved lateral line, 30; high, narrow, and closely imbricated; 

 coloration much like that of N. topelca ; scales above dark-edged; a 

 dusk^' band along the sides, most conspicuous on the caudal peduncle, 

 not terminating in a well-defined spot; a dusky dorsal streak; dorsal 

 and caudal fms somewhat dusky, the others pale; top of the head and 

 snout sprinkled with black dots. 



In case future investigations should prove that these specimens are 

 not to be referred to Girard's species, I propose for them the name of 

 N. umhrifer. 



9. Notropis aeneolus Hay, sp. iiov. 



Body compressed and considerably elevated, the profile ascending 

 from the snout to the dorsal fin. Head broad, the interorbital space 

 in the length of the head, 2.\ times; diameter through the opercles in 

 the length of the head, 1^. Snout blunt. Mouth small, terminal, and 

 oblique; the lower jaw included within the upper in the closed mouth, 

 the maxillary not attaining a perpendicular from the front of the eye. 

 Eye small, eqial to the snout, and its diameter in the length of the head 

 4 times. Head in length, 4J; depth, 3i. Scales, C-35-5, in very regular 

 rows, not markedly higher than long, and rather loosely imbricated. 

 Lateral line complete and little decurved. Caudal peduncle high and 

 compressed, its median depth equal to one-half of the greatest depth of 

 the body. Dorsal I, 8; A, I, 7. Dorsal directly over the insertion of 

 the ventrals, high and falcate; its greatest height one-fifth of the 

 length of the body; its base one-seventh the same unit; the pectorals 

 scarcely reaching the base of the ventrals; these fully attaining the 

 anterior ray of the anal. Anal high and falcate; its height G, and its 

 base 9 times in the length of the body. Caudal deeply forked. Teeth 

 4-4, hooked, and with an evident grinding surface and slightly serrated 

 edges. Color above brassy, with a tinge of green; below, orange. All 

 the scales above the lateral line edged with dark points, which, be- 

 coming more abundant above, ])roduce a dorsal streak. Along the lat- 

 eral line there is a more or less conspicuous greenish band, and in most 

 specimens each pore of the lateral line is conspicuously marked by dots. 

 Top of the head orange and dusky, as well as the snout. All the rest 



