^6 PEBCID^. 



55. CENTRARCHUS*. 



Centrarchus, Cuv. R^gne Anim. ; Cuv. ^ Vol. iii. p. 84. 

 Pomoxis, {Rafin.) Holhr. Ichth. S. Card. p. 36. 



Six branchiostegals. All the teeth villiform, without canines ; 

 teeth on the palatine bones and on the tongue. One dorsal ; the 

 anal fin generally with more than three spines. Operculum with 

 two flat points, praeoperculum entire or scarcely denticulated. Scales 

 moderate. Air-bladder notched behind. Pyloric appendages in 

 moderate number. 



Fresh waters of the Nearctic region ; one species from Cuba. 



1. Centrarchus seneus. 



CilJlila senea, 7-e Siieur, Journ. Ac. Nat. Sc. Philad. 1822, p. 214. pi. 12 ; 



Kirtland, Zool. Ohio, pp. 168, 191. 

 Centrarchus seneus, Cuv. 8f Val. iii. p. 84; Richards. Faun. Bor. 



Amer. Fish. p. 18. pi. 75; Kirtland, Bost. Journ. iv. p. 239. pi. 11; 



f. 1 ; ? Dekay, New York Fauna, Fishes, p. 27. pi. 2. f. 4. 

 Centrarchus pentacanthus, Cuv. 8f Val. iii. p. 88. 



D. 1^. A. j^. L. lat. 39-40. L. transv. 19-20. Vert. 1^18. 

 Ctec. pylor. 7. 



The height of the body is 2| in the total length, and more than 

 the length of the head ; the diameter of the eye is one-fourth of the 

 latter, and rather shorter than the distance between the eyes. 

 Praeoperculum and prseorbital serrated. CaudaUs truncated. Grey- 

 ish brown, each scale with a dark centre ; vertical tins variegated 

 with dark brown ; a black spot above the angle of the operculum. 



Lakes of North America. 



o-c. Adult : skins. Lake Erie. From Dr. Pamell's Collection. 



2. Centrarchus pomotis. 



Baird, in the Ninth Smithson. Export, p. 325. 



D. il. A. 3^. L. transv. 6/12. 



Snout very short, lower jaw longest ; the maxillary bone reaching 

 to the posterior margin of the eye. The length of the h«^ad is 3| in 

 the total, the diameter of the eye one-fourth of the former. Caudalis 

 roimded ; the external soft ray of the vcntrals extending as a filiform 

 appendage beyond the other rays, which do not reach the front end 

 of the anal. Greenish olive, with three or four irregular longitudinal 

 bands of dull greenish yellow ; a dusky spot at the end of the oper- 

 culum ; fins uniform. (Baird.) 



New Jersey ; New York. 



* 1. Centrarchus viridis, Cuv. 4~ Val. vii. p. 460. — Southern parts of N. America. 



