1887.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 247 



It is possible that specimens of this latter species are included with P. 

 notatus, but, if so, I am unable to distinguish them. 



After a careful comparison of specimens of F. notatus from various 

 quarters with the types of Hyhopsis taurocephalus Hay (C. rigilax), 

 found in Eastern Mississippi, I am unable to distinguish any generic 

 diflerences between them ; and even the specific diflerences are slight, 

 but, doubtless, sufficient. There are no special diflerences in the den- 

 tition, the teeth of Plmcplialcs being also more or less hooked. The 

 alimentary canal of P. notatus varies much in length, sometimes being 

 even less than twice the length of the body. The specimens from 

 Kansas have the intestines about twice the length of the body, some- 

 times a little more, sometimes less. The structure of the dorsal spine 

 in C. xigilax is the same as it is in Pimepludes. It appears, therefore, 

 probable that to the genus Pimephales must be assigned three species, 

 promelas, notatus, and vigilax, and these three are closely related. 



13. Pimephales promelas confertus (Grd.) Gilbert. 

 Abundant. 



14. Campostoma anomalum (Raf.) Ag. 

 Two specimens. 



15. Moxostoma macrolepidotum (LeS.) Jor. 



Two specimens ; one 10 inches long, fins bright orange, and consid- 

 erable portions of the body charged with yellow pigment. 



16. Catostomus teres (Mitcbill) Giinth. 



17. Ictiobus velifer (Raf.) Jor. & Meek. 



18. Ictalurus punctatus (Raf.) Jor. 



19. Amiurus melas (Raf.) Jor. & Copel. 



20. Lepidosteus osseus (L.) Ag. 



One specimen 3J inches long whose head formed one-third the total, 

 length. 



III. — North Fork of Solomon River, at Kirwin, Phillips 



County. 



The collection obtained at this point was made in a muddy, oozy, 

 stream within a mile from the town. Only nine species were secured 

 as the fruits of a day's hard work. 



1. Lepomis humilis (Grd.) Cope. 



2. Semotilus atromaculatua Mitcbill. 



3. Notropis megalops (Raf.) Jor. & Meek. 



4. Notropis deliciosus (Grd.) Jor. & Meek. 



Common, and much resembling specimens of same species trom In- 

 diana. Scales of lateral line, 38. Paler in color than specimens collected 

 at most other points in Kansas. 



