1870.] '±^^ [Cope. 



emargination of the operculum previously pointed out, enables me to 

 define the genera more satisfactorily than my predecessors. Thus they 

 may be arranged in four groups. 



I. Operculum emarginate ; a supernumerary maxillary bone : — Microp- 

 terus, Ambloplites, Pomoxys, Centrarclius, Acantharchus, Emieacanthus 

 (?) Hemioplites. 



II. Operculum emarginated ; no supernumerary maxillary : — Meso- 

 gonistius. 



III. Operculum entire, produced ; an additional bone attached to the 

 maxillary : — Chsenobryttus. 



IV. Operculum as last; no supernumerary maxillary: — Lepomis, 

 Pomotis. 



21. Ch^nobryttus gillii, Cope. 



Lepomis gi'lii, Cope. Jour. Acad. Nat. Sci., 1868, 225. 



This species is exceedingly common in all the streams of North Caro- 

 lina east of the Allegheny Mountains. It does not occur in the French 

 Broad. All the specimens have clouded markings on the sides, which in 

 the young, are broad, distinct olive-brown cross-bands, which embrace 

 pale spots, giving a chain-like pattern. Fins blackish, cross-barred ; four 

 brown bands radiating backwards from orbit. Iris bright red. The spe- 

 cies is rarely seen more than five inches long, and pi-efers rather still waters. 

 It bites the hook very readily, and is called the red-eyed bream on the 

 Catawba. 



The C. mineopas, Cope, possesses the additional maxillary, and I have 

 no doubt the C. fiielanops (Gill's type), and the C. cJiarybdis, Cope, though 

 I have not been able to verify it on the latter. 



ENNE ACANTHUS, Gill. 

 Jour. A. N. Sci. Phil, 1868, 218. 



22. Enkeacantiitjs guttatus, Morris. 

 Proceed. Acad. Nat. Sci., Phila., 1858, p. 3. 



Abundant in the Neuse River in still water, as in Virginia and New 

 Jersey. 



LEPOMIS, Raf. 

 23. Lepomis rubricauda, Holbr. 

 This marked species, the southern representative of the L. appendix. 

 is very common in the hydrographic basins of the Catawba, Yadkin and 

 Neuse. In life the second dorsal and caudal' fins are red, and there is a bay 

 spot at the base of each scale forming interrupted stripes. Flajj of oper- 

 culum black, the continuation of a dark shade from the preoperculum, 

 which is bordered above and below by a blueband ; two blue lines on 

 oijerculum below the latter. 



24. Lepomis megalotis, Raf. 

 L. incisor Cuv. Val. 

 From the upi^er waters of the Ficnch broad. 



