55. CKNTUAjtcnus. 257 



3. Centrarchus intermptus. 



Centrarchus interruptus, (iirard, Pt-oc. Ac. Nat. fie. Philad. 1854, p. 129. 



maculosufl, Ayren, Proc. Californ. Ac. Nat. Hint. 1H54, p. 8. 



Amblopli1x;s intftrruplus, Oirard, U. S. I*nc. It It Exp. Fishes, p. 10. 

 pi. 2. f. 1^. 



The length of the head is about one-third of the total ; the dia- 

 mcttir of the eye one-fourth of the length of the h«!ad. (/reyish 

 brown, with irregiilar darker transverse bands, int<;rru{)t<;d along th© 

 lateral line ; the portion of the band a))ove is somewhat alternating 

 with that beneath it ; a large lilackt spot above the angle of tho oper- 

 culum ; two dark streaks diverge from the eye bac;kwards. (Gir.) 



Rivers of California. 



4. Centrarchus irideus. 



Perca iridea, Bosc. 



Labrus sparoides, Lac4p. iii. pi. 24. f. 2. 



iris, Luc&p. iv. p. 710. pi. 5. f. 3. 



nmcropterufl, Luc/tp. iii. pi. 24. f. 1. 



Centrarchus irideus, Ouv. ^ Val. iii. p. 89; Ilolhr. Ichth. S. Carol. 

 p. 15. pi. .3. f. 1. 



sparoides, Cuv. ^ Val. vii. p. 458 (not pi. 48;. 



1). ilzi£. A.!^. 



Greenish, with scries of black spots ; the rays of the vertical fins 

 with alternate black and white spots. Dorsal fin wdth a duwky spot, 

 bordered with orange near the posterior extremity of tho fin (more 

 indistinct in old age). 



Charlestfjn. 



5. Centrarchus hexacanthus. 



Centrarchus sparoides, Cuv. ^ Val. iii. p. 88. pi. 48. 



hexacanthas, Cuv. &■ Val. vii. p. 4o8; Kirtland, Boat. Journ. iii. 



p. 480. pi. 20. f. 2. 

 Cichla storeria, Kirtl. Rep. Zool. Ohio, p. 101. 

 Pomcjfcis hexacanthus, Ilolhr. Ichth. S. Carol, p. 36. pi. 0. f. 1. 



D-lSn- A.^,. Ca.c. pylor. 8. 



Tho form of the head and body is similar to that of 0. ffMeus. 

 Praeoperciilum with somr; iriegnlar denticulations at the angle and 

 at the lower limb. Body and vertical fins irtregularly spotted with 

 blackish. 



Fresh waters of North America. 



a-e. Adult, half-grown, and young: skins. Streams leading into 



Lake Erie. From Dr. Pamell's Collection. 

 f-h. Young. 



6. Centrarchus nitidus. 



Pomoxis nitidus, CrtVarrfm U.S.Pac. R.R. Exp. Finhen, p.O. pl.2.f.5-8. 



"• is- ^- Tr 

 The height of the body is one-third of the total length, and more 



