500 PKOCEEDINGS OF UNITED STATES NATIONAL MUSEUM 



Genus CENTRAECHUS, Cuvier. 



18, Centrarchus irideus (Lac.) C. & V. 



C. irideus, Jordan, Bull. U. S. Nat. Mus. No. 10, 31. 



At Narkeeta, on the Mobile and Ohio Railroad, I saw a specimen of 

 Centrarchus taken from the Sucarnochee River, but was not able to pro- 

 cure it. From an examination made at the time I regard it as being 

 C. irideus. It appeared, however, to have some of the characters of 

 C macropterus ; there being, for instance, 8 anal spines instead of 7, the 

 usual number.* 



Genus POMOXYS, Rafinesque. 



19, Pomoxys nigromaculatus (Le S.) Girard. (No. 27,461.) 



Centrarchus hexacanihus, DeKay, Fauna N. Y. Fishes, vol. iv, 1842, 31. 

 Pomoxis nigromaculatus, Girard, Pac. R. R. Surv. vol. x, 6. 



Numerous specimens of this were taken from Horsehunter Creek at 

 Macon. Both this and the next are much sought after as food and to 

 stock fish-ponds. 



20. Pomoxys annularis, Rafinesque. (No. 27,460.) 



Pomoxis annularis and nitldus, Giraud, Pac. R. R. Surv. vol. x, 6. 



Same locality as above. 



Family ELASSOMATIDiE. 

 Genus ELASSOMA, Jordan. 



21. E'assoma zonatum, Jordan. (No. 27,452.) 



EJassoma zonatum, Jordan, Bull. U. S. Nat. Mus. No. 10, 50; Bull. 111. Lab. 

 Nat. Hist. No. 2, 47. 



Two specimens of this interesting si)ecies were secured in a pond 

 along the Noxubee River at Macon. The largest was If inches in 

 length, somewhat larger than the specimens hitherto found. After care- 

 ful search I have been unable to find any evidences of the existence of 

 vomerine teeth in this species. The fin-formula is, D. I; Y, 10; A. Ill, 5 

 or 0. The scales are very small and difficult to count. As nearly as I 

 could make out, there are 42 vertical rows and 18 or 20 horizontal rows 

 between anal and dorsal. The pseudobranchiai are obsolete. 



* Since tliis paper has gone to press, Professor .Jordan writes me that he is now sat- 

 isfied that C. macroj)terus and C. irideus are identical, and that as the term macropterus 

 has the priority, it mnst be accepted as the name of the species. He had already, in 

 his "Catalogue of the Fishes of Illinois," published in Bull. No. 2, 111. Lab. Nat. Hist., 

 expressed the opinion that they might have to be merged into one. 



