1888. PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 437 



13. Notropis volucella (Cope). (U. S. Nat. Mus., Cat. No. 40101.) 

 G. Not very abundant. 



Length of longest specimen, 3 inches. Head 4 in the length of the 

 body; depth, 4f; dorsal rays, 8; anal rays, 8. Scales in the lateral 

 line, 35 to 36. 



Body elongate, slender, with the dorsal region little elevated. Snout 

 blunt; mouth very small, its gape parallel with the axis of the body, 

 end of maxillary reaching about two-thirds distance to vertical from 

 anterior margin of the orbit. 



Length of snout equal to diameter of the eye, 3^ in the length of the 

 head. 



Origin of first dorsal ray midway between tip of snout and base of 

 caudal fin ; scales before the dorsal not crowded, 15 to 16 in a series. 

 Tips of pectoral fins reaching nearly to base of ventrals; veutrals reach- 

 ing anal. 



Teeth 4-4, slightly hooked at the tips; edges crenate; preorbital 

 bone large, vertical diameter two-thirds diameter of eye, horizontal 

 diameter three-fourths diameter of eye. 



No markings on the tins ; a dark band on sides and around the snout 

 the black on the snout on the upper jaw only. 



This species differs from Notropis microstomus in having comparatively 

 a smaller mouth, a more slender form, larger snout, higher fins, and a 

 larger preorbital bone. 



14. Notropis whipplei (Girard). (U. S. Nat, Mus., Cat. No. 40113). 



Silver-fin. 



M. L. Not abundant. 



15. Notropis megalops (Rafinesque). (U. S. Nat. Mus., Cat. No. 40108.) 



Common Shiner. 



M., L., C, G., P. Very abundant. 



16. Notropis lythurus Jordan and Gilbert. 



Red-fin. 



L., C, G., P. Scarce. 



17. Notropis atherinoides (Rafinesque). 

 M. Scarce. 



18. Ericymba buccata Cope. (U. S. Nat. Mas., Cat. No. 40105.) 



L., C, G. Very abundant iu L. ; much less so in other localities. 



19. Rhinichthys atronasus (Mitchill). (U. S. Nat. Mas., Cat. No. 40111.) 



Dace. 

 L. Not abundant. 



20. Hybopsis kentuckiensis (Rafinesque). (U. S. Nat, Mas., Cat. Nos. 40086 and 



40096.) 

 Horny-bead. 



M., L,, C, P. Abundant iu all places except P. 



