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roughened. Dorsal fin beginning above the pecto- 

 rals and ending beyond the anal, with 8 short spiny 

 rays and 12 soft ones, olivaceous, with a longitudinal 

 brown stripe. Vent anterior: anal fin very far from 

 the tail, convex pale, rays i and 8. Pectoral fins 

 15. Caudal 20, olivaceous with many small trans- 

 versal and flexuose lines. Diameter less than one 

 seventh of the length. 



[II. 169] 23d Species. Black Hogfish. Etheos- 

 toma nigra. Etheostome noire. 



Entirely black, pale beneath ; scales smooth, lateral 

 line streight, mouth rather beneath, forehead rounded, 

 upper jaw longer; preopercule rounded, spine acute: 

 vent rather anterior: tail entire nearly truncate. 



From one to two inches long. Observed in Green 

 river. Vulgar name. Black minny. Iris black, sil- 

 very, and small. Diameter one seventh of the length, 

 without spots. Head small. Pectoral fins oboval. 

 Tail 20. Anal fin 2 and 8. Dorsal 10 and 12. 



2d Subgenus. Diplesion. 



Dorsal fin nearly double, divided into two joining 

 parts. Meaning nearly double. 



24th Species. Blunt nose Hogfish. Etheostoma 

 Blennioides. Etheostome blennioide. 



Body elongate, breadth one eighth of the length, 

 olivaceous almost diaplanous, some brown spots on 

 the back, and some brown geminate transversal lines 

 across the lateral line, which is straight, but raised 

 at the base. Head small, snout rounded, mouth 

 small beneath, lower jaw shorter; opercule angular, 

 spine acute; scales ciliated, pectoral fins elongate, 

 tail also, and bilobed at the end. 



A strange species, which has the appearance, head, 



