210 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY — III. 



urus of Agassiz, which iiDqiiestionably belongs to this species, has a 

 year's priority over nifjer, and is really the- first teuable name api)lied to 

 any si)ecies of ]iuhalichtln/s. The original account given by llafiiies(ine of 

 his Catofitomns nigcr and that by Professor Agassiz of his BulniUchfhi/s 

 itrus I here append. Agassiz's descriptions of B. niger and B. honasuH 

 have been previously given under the head of the genus. 



Cafostomns {Ictiobus) niger Ilaf. Ich. Oh. p. 5G. — "Entirely black; lat 

 eral line straight; 1 have not seen this fish. Mr. Audubon describes it 

 as a peculiar si)ecies found in the Mississippi and the lower part of the 

 Ohio, being entirelj' similar to the common Buffalo fish, but larger, 

 weighing upwards of fifty pounds, and living in separate schools." 



Carpiodes nrus Agassiz, Am. Journ. Sci. Arts, 1854, p. 355. — "From 

 the Tennessee lliver. It grows very large, weighing occasionally from 

 30 to 40 pounds. The body in this species is not so high as in C. cypri- 

 Hus, nor is it so compressed above; the scales are also not so high, but 

 more angular behind, and the anterior portion of the dorsal is not so 

 elongated. The gill-cover is larger, and the distance from the hind bor- 

 der of the eye to the inferior angle of the subopercle near the base of 

 the pectorals and the distance Irom the same point to the superior and 

 posterior angle of the opercle, are nearly equal. In C. cuprinnfi the dis- 

 tances differ by nearly one third. The subopercle is not triangular, but 

 its hind border is nearly regularly arched from the upper angle to the 

 posterior angle of the interoi)ercle. The anal has its posterior margin 

 full and not lunate; the caudal is not so deeply furcate as in C. ct/prinus. 

 The ventrals do not reach the anal. All fins are of a dark color. I am 

 indebted to Dr. Newman for this species." 



I found no specimens of Bubalichthy-s urus in the collections of the 

 United Slates National Museum. 



5L». BUBALICHTHYS MEKIDIONALIS {OUnther) Jordan. 



Central Amcricdii Buffalo. , 



1868 — Sdcrognathus meridionalia GOnther, Trsins. Zool. Sjc. p. — . 



Scltrognathue meridionaliH GCntuer, Cat. Fishes Brit. Miih. vii, 2;?, 1868. 

 HABrFAT. — Klo UHiiniaciiita, Gunteinaln. 



I know nothing of this si)e('ies except from (iiintlier's description. 

 Frotn its remote locality, it is jjrobably distinct, but the description 

 shows no especial difference from B. buholus, unless it be that the 

 body is slenderer. The following is I)r, Giinther's account : — 



" I). L'0-30. A. 10 : lat. 1, 3S, 1. transv. 7.^-7*. Mouth small, interior, 



