16 PROCEEDINGS OF U^;lTED STATES NATIONAL MUSEUM. [1885, 



14. Phenacobius mirabilis, Girard. 



15. Hybopsis biguttatu.s, Kirtlaud. Blue Chub. 



16. Semotilus atromaculatus, Rafineeque. Riffle Chnb. 



17. Labidesthes sicculus, Cope. Clear Tail. 



18. Mjcropterus salmoides, Lac. 



19. Lepomis cyanellus, Ral'. 



20. Lep>onais humilis, Girard. 



21. Pomoxys annvilaris, Raf. 



22. Boleosoma olmstedi niaculatum, Agassiz. 



23. EtheoBtoma variatum spectabile, Agassiz. 



This variety, abimdaut in the clear waters of Missouri, seems to differ 

 from the typical variatum ( = ccerulea, Storer) only in the distinctness of 

 the dark streaks which run along the series of scales along the sides of 

 the baok. No specimens having exactly this coloration have been ob- 

 served east of Western Illinois, nor has the typical variatum been seen 

 we«t of the Mississippi Eiver. 



24. Aplodinotus grunniens, Raf. 



G. — Osage River. 



Specimens were selected by us in Grand Eiver, a large branch of 

 the Osage Eiver at Clinton, Missouri, a moderately clear stream, having 

 some current, and at Tabo Creek at Calhoun, a similar stream, muoh 

 smaller in size. In both the bottom is of clay, with some rock and 

 gravel. 



1. Lepidosteus osseus, L. 



2. Noturus flavus, Rafiuesqne. 



3. Amiurus melas, Raiiiiesque. 



4. Leptops olivaris, Rafiuesque. 



5. Ictalurus punctatus, Rafineeque. 



6. Ictiobus velifer, Rafiuesque. 



Specimens correspond apparently to the Garpiodes bison of Agaesiz. 

 Head, 4^ in length ; depth, 2^. Longest dorsal rays not extending quite 

 to the end of the fin. Eye large, 4 in head. Dorsal rays, 24. Scales, 

 36-12. Opercle coarsely striate. 



7. Catostomus teres, Mitchill. 



8. Campostoma anomalum, Rafiuesque. 



9. Pimephales notatus, Rafiuesque. 



10. Cliola vigilax, Baird & Girard. 



11. Notropis deliciosus, Girard. 



12. Notropis gilberti, Jordan & Meek. 



13. Notropis dilectus, Girard. 



{Alburnm dilectus, Girard, Proc. Ac. Nat. Sci. Phila., 18.56, 193. 

 Jlburnus oUgaspis, Cope, Proc. Ac. Nat. Sci. Phila. , 1864, 282.) 



The specimens from Grand Eiver agree with others from Poteau Eiver, 

 and with the original types of Girard, which came also from the neigh- 

 hood of Fort Smith. Alburnus oligaspis. Cope, seems to be the young of 

 the same species. Its anal rays are 11 instead of 14, as stated by Pro- 

 fessor Cope. 



