62 PERCID^ 



conspicuous, (iround-colour whitish, minutely and densely dotted 

 with black ; dots crowded in the middle of the scales in the shape of 

 a central blotch. 



Rio de Maj-po, Chili. * 



The two following species are too little known to be brought 

 into this genus ^vath certainty ; but being evidently good species, 1 

 think it better to place them here than to neglect them. 



4. Percichthys ciliata. 



Pcrca ciliata (Kulil H)- v. Hassclf), Cnv. **>■ Vdl. ii. p. 52. 



Height of the body not quite one-fourth of the total length. Scales 

 strongly ciliated. Above uniform greenish ; no black spot on the 

 dorsal tin. 



Java. 



5. Percichthys marginata. 

 Perca marginata, Cur. <S,- Vol. ii. p. ."J:',. 



Height of the body one-fourth of the total length ; edge of oper- 

 culum erUire: edges of ])rieopereulum c(]ually and finely denticu- 

 lated ; eaudal tin forked, blaek-edged. 



Hah. ? 



3. PARALABRAX. 



Paralabrax, Girard, Proc. Ac. Nat. Sc. Philad. 1850, p. 131. 



Habit cylindrical. Six branchiostegals. Pseudobranchirc ? Tcetli 

 villif(jrm, with a scries of larger ones on each .side of the jaws ; tooth 

 on tlu^ palatines, tongue sui(Jotb. One dorsal, deejdy notched, the 

 first jtortion with nine sjiines ; the anal fin with three. Operculum' 

 spinif'erous ; praopereuhim serrated. Scales small. 



Fresh waters of California. 



1 . Paralabrax nebulifer. 



Labrax nebulifer, Gimrd, Proc. Ac. Nat. Sc. Philad. 1854, p. 142. 

 Paralabrax nebulifer, (iirard, I. c. 185G, p. 131. 



Total length not quite four times the height of the body ; lateral 

 line?; third donsal s])inc longest. Hack leddish brown, with large 

 cloud-like blackish Itlotehes ; snout covered with small nmndish 

 .spots ; a dark band from the orbit across the cheeks to the gills. 



Monterey (California). 



