REVIEW OF EAFINESQUE ON AMERICAN FISHES. 23 



Species, E. blennioides, and U. caprodes. The original diagnosis was 

 drawn from E. flabellaris, and the subsequent subtraction of the two 

 latter as Diplesium leaves the name properly to be retained here. 



*23d species, Black Hogfish, ETHEOSTOMA NIGRA, Etheostome noire, 

 (p. 37.) 



BoLEOSOMA NIGRA (Raf.) Jordan. 



Boleosoma maculatum Agassiz. 

 Boleosoma brevipinne Cope. 

 Not NotJionotus maculatus Agassiz. 

 Not PoecilicMhys camurus Cope. 



Description not very good, but I have little hesitation in making the 

 above identification, as the colors of the males of this species in spring 

 are often so intense in life as to give the impression of a truly black fish. 

 The small, dark spots, obvious on close inspection, may be readily over- 

 looked. 



The name Aplesium cannot be retained for this genus, as in the num- 

 ber of the Western Miscellaneous Mag. in which Aplesion was first pro- 

 posed this species was not included. 



I am now convinced that my previous identification of EtJieostoma 

 nigra with PoecillGhthys camurus Cope and Etheostotna maculatum Kirt. 

 is erroneous. 



t2d subgenus, DIPLESION. (p. 37.) 



t24th species, Blunt-Nose Hogfish, ETHEOSTOMA BLENNIOIDES, Ethe- 

 ostome blennioide. (p. 37.) 



Diplesium blennioides Eaf. 

 Etheostoma blennioides Kirtland (description but not figure), (not of 



Agassiz and late authors). 

 Pileoma cymatogramma Abbott. 

 Hyostoma cymatogrammum Cope. 



Rafinesque's description cannot refer to the "J57. blennioides Eaf." of 

 Agassiz and recent authors {=Alvordius aspro Cope and Jor.). The 



* Entirely Mack, pale beneath ; scales smooth, lateral line streight, mouth rather leneath, 

 forehead rounded, upper jatv longer; preopercule rounded, spine acute; vent rather ante- 

 rior ; tail entire nearly truncate. 



From one to two inches long. Observed in Green River. Vulgar name Black Minny. 

 Iris black, silvery, 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. 



t Dorsal fin nearly double, divided into two joining parts. Meaning nearly double. 



tBody elongate, breadth one-eighth of the length, olivaceous, almost diaphanous, some 

 iroiv7i spots on the back, and some hrown geminate transversal lines across the lateral line, 



