1885.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 15 



ets. Flat Creek and its Spring Fork are clear and gravelly, being the 

 only streams mentioned in this paper in which the bottom can be seen 

 where the water is a foot in depth. Most of the specimens enumerated 

 below are from Flat Creek : 



1. Noturus flavus, Batiuesque. 



2. Amiurus melas, Rafinesque. 



3. Ictiobus velifier, Rafinesque. {Carpiodes hison, Agassiz). 



Similar to specimens obtained later at Clinton. Scales, 48-14. 



4. Catostomns teres, Mitchill. 



5. Moxostoma macrolepidotum duquesni, Le Sueor. 

 €. Campostoma anomalum, Rafinesque. 



7. Pimephales uotatus, Rafinesque. 



8. Notropis Ititreusis, Baircl «fe Girard, 



9. Notropis deliciosus, Girard. 



10. Notropis umbratilis, Girard. 



11. Notropis megalops, Rafinesque. "Shiner." 



12. Notropis rubrifrons, Cope. 



13. Notemigonus americanus chrysoleucus, Mitchill. 



Many specimens from a slough of Blackwater Greek. These are un- 

 usually slender in form, and in one of them the lateral line is developed 

 only on the anterior half of the body. A. 12 ; Lat. 1. 54. 



Comparison of numerous specimens of Notemigonus americanus and 



chrysoleucus leads us to consider them as geographical varieties of one 



species, the northern form {chrysoleucus) having fewer anal rays and 



the scales more crowded and less regular. The following is the count 



of numerous examples: 



Americanus. 



Anal. Scales. 

 Vii'ginia i, 15 46 



Columbia, S. C 15 46 



Columbia.S.C 15 50 



Columbia.S.C 15 46 



Columbia.S.C 17 46 



Columbia.S.C 17 43 



Georgia 15 44 



Florida 17 44 



Chrysoleucus. 



Nova Scotia .,. 13 51 



Susquehanna River 12 47 



Maryland 14 48 



Michigan 12 48 



Red River of the North 12 48 



Illinois 13 51 



Potomac River 14 48 



Missouri 12 • 54 



Missouri 13 49 



Louisiana 13 46 



Texas 13 49 



