ETHEOSTOMATID^. 15 



8. Alvordius peltatus, (Stauffer,) Cope & Jor.*— Conestoga River, 



Pennsylvania. 



9. Alvordius macrocephalus, Cope. — Upper Ohio Valley. 



10. Alvordius phoxocephalus, (Nelson) Cope & Jordan.— Indiana to 



Tennessee and Kansas. 



Percina, Haldeman. 



11. Percina caprodes, (Eaf.) Grd.— Great Lake Region to Alabama. 



12. Percina carbonaria, (B. & G.) Grd. — Texas. 



13. Percina zebra, Agassiz. — Great Lake Region {d. s.). 



14. Percina manitou, Jordan. — Indiana to Minnesota. 



Rheocrypta, Jordan. 



15. Rheocrypta copelandi, Jordan. — Wabash Valley. 



Imostoma, Jordan. 



16. Imostoma shumardii, (Grd.) Jor. — Indiana to Iowa and Arkansas. 



DiPLESiUM, Rajinesque. 



17. Diplesium blennioides, Raf. — Mississippi Valley. 



18. Diplesium newmani, (Ag.) Jor. & Copel. — Tennessee River. 



19. Diplesium simoterum, (Cope) Copeland. — Cumberland and Upper 



Tennessee Rivers. 



BoLEOSOMA, De Kay. 



20. Boleosoma olrastedi, (Storer) Ag.— Great Lakes to l^ew England 



and south to Georgia, east of the Alleghanies. 



21. Boleosoma atromaculata, (Grd.) Jor.— New York to Virginia (? var.). 



22. Boleosoma nigra (Raf.) Jor.— Mississippi Valley and Upper Great 



Lakes. 



23. Boleosoma aesopus, Cope.*— Alleghany River. 



24. Boleosoma mesaea, (Cope) Jordan.— Kansas {d. g.). 



Arlina, Girard. 



25. Arlina eflf'ulgens, Grd.— Maryland to North Carolina {d. g.). 



26. Arlina stigmaea, Jordan.— Georgia to Louisiana. 



27. Arlina maculaticeps, (Cope) Jordan* {d. g.). 



28. Arlina atripinnis, Jordan.— Cumberland River. 



