Cope.] ^''' [Jan. 7,1870. 



this species, as I have observed in Pennsylvania, are much larger, and 

 more darkly colored, especially about the head, than the females. 



BOLEOSOMA BREVIPINNE, Cope. 



B. oh7istedi hrevipinne, Cope, Journ. Ac. Nat. Sci., 1868, 214. 



The thick punctation of the dorsal region and nape, and crown and 

 muzzle, are color peculiarities of this form. The cheek is smooth. In B. 

 olmstedi it is scaled, though in badly preserved specimens they are occa- 

 sionally rubbed off. 



Many specimens from tributaries of the Ohio, i. e. the Kiskiminitas and 

 Miami. 



BOLEOSOMA AESOPUS, Cope. 



Spec. nov. 



The dorsal line descends regularly from the base of the first dorsal fin 

 to between the orbits, and then curves more abruptly to the mouth. 

 Mouth terminal; eye four times in head, once in advance of its front rim. 

 The dorsal line descends from the first dorsal fin, to a somewhat con- 

 tracted caudal peduncle. Dorsal fins much elevated, VII-14. Pectorals 

 a little elongate, not reaching vent, but little exceeding the very moderate 

 ventrals. A. O.-IO. Scales 5—47 — 8. Color light brown with six small 

 dark dorsal spots, and ten similar small spots on the lateral line. A black 

 bar round muzzle, and one below eye. 



Lines. 



Total length .26.6 



Of tail 4.3 



Of pectoral fin 5.2 



Depth at first dorsal 4.6 



At nape 3.4 



Of caudal peduncle 2.3 



The form of this fish is rather that of a Poecilichthys, while the absence 

 of si^inous anal ray is peculiar to the present species. From the number 

 of rays, 10, in the anal, it is probable that the missing spinous ray is re- 

 jtresented by the first cartilaginous ray, and is not wanting. In general 

 it is so near to the B. olmstedi, as not to be removed from the genus. 



Found in the Loyalsoc Qi-eek, in the Allegheny region, in Lycoming co. , 

 Penna., by Aubrey H. Smith, of Philada. 



Hyostoma, Agass. 

 Cope, Jour. Ac. Nat. Sci., Phil., 1868, 214. 



Hyostoma cymatogrammum, Abbott. 

 From the head of the Cumberland, Tenn., and French Broad River, N. 

 Ca. I consider H. hlennioperca, Cope, 1. c, as only a variation of this 

 species. 



^ Hyostoma simoterum. Cope. 

 Jour. Ac. Nat. Sci., Phil., 1868, 215. 

 From a tributary of the Clinch River, Tenn. 



