466 FISHERIES OF THE UNITED STATES. [80] 



Genus PERCINA Haldeman. 



40. Perciiaa caprodes (Raf.) Girard. Log Perch ; Rock-fish ; 



Hog Molly ; Hog-fish. 



Great Lake region ; Mississippi Valley southward to 

 Texas ; Eastern United States south at least to Po- 

 tomac River. 



This is the largest of the Darters. 



1317. Yellow Creek, Ohio. Prof. S. F. Baird. 



Genus ALVORDIUS Girard. 

 Subgenus Alvordius Girard. 



41. Alvordius macrocephalu* (Cope) Jordan. 



Etlieostoma macrocephalum Cope, Trans. Amer. Phil. Soc, 1866, p. 401; 

 Alvordius macrocephalus, Jordan; Man. Vert. E. U. S., ed. 2, p. 220. 



Ohio Valley. 



1194. Foxburg, Pennsylvania. Prof. S. F. Baird. 



Subgenus Ericosma Jordan. 

 49. Alvordius evides Jordan & Copeland. 



Ericosma evides Jordan, Bull. IT. S. N. M., No. 10, 1877, p. 8. 

 White River, Indiana. 



201-19. White River, Indiana. D. S. Jordan. 



Genus HADROPTERUS Agassiz. 

 Subgenus Hadropterus Ag. 



43. Hadropterus siigroftasciatus Agassiz. Crawl-a-bottom. 



Rivers of the Southern United States from South Caro- 

 lina to Louisiana (Jordan & Gilbert). 

 1197. Mobile, Alabama. Prof. L. Agassiz. 



Genus NOTHOISTOTUS Agassiz. 



44. IVothoBiotus niaculatus (Kif't.) Agassiz. 



Etlieostoma maculala Kirtland, Bost. Jour. Nat. Hist., 1840, page 276. 



Yellow Creek and Mahoning River, Ohio. 

 1319. Yellow Creek, Ohio. Prof. S. F. Baird. 



Genus NANOSTOMA Putnam. 



45. NanostoiBia tfoalassiiiuira Jordan & Brayton. 



Nothonotus thalassmus Jord. & Brayt., Bull. U. S. N. M., No. 12, p. 13, 



1878. 



Rivers of South Carolina. 



31122. (R.) (One of the types.) Saluda River, South Carolina. Jordan 

 & Brayton. 



Genus ETHEOSTOMA Raftnesque. 



