510 PROCEEDINGS OF THE ACADEMY OF [DeC. 



SOME NEW AND LITTLE-KNOWN PERCOID FISHES. 



BY HENRY W. FOWLER. 



In this paper I give an annotated list of the more generalized percoid 

 fishes of special interest to be found in the collections of the Academy of 

 Natural Sciences of Philadelphia. Other papers dealing with remain- 

 ing families are expected to follow. 



Owing to the more general acceptance of the view among naturalists 

 that the first species under a genus be considered the type, I abandon 

 the process of elimination. Cases only apply where no type is desig- 

 nated or tautonomy is not inferred. Further I shall retain words 

 ■different only etymologically, though with a strict adherence to the 

 original orthography, even when erroneous, provided there is no 

 •evidence contrary. 



DULEIDiE. 



This name supersedes Kuhliidce, as Kuhlia Gill, Proc. Acad. Nat. Sci. 

 Phila., 1861, p. 48 (type Perca ciliata Cuvier specified = Centro'pomus 

 rupestris Lacepede), is superseded by Dules Cuvier, Regne Animal, 

 Ed. 2, II, 1829, p. 147 (type Centropomus rupestris Lacepede by first 

 species). 

 Dules marginatus boninensis subsp. nov. Fig. 1. 



Head 3; depth 2^; D. X, 11 ; A. Ill, 12; P. i, 13; V. I, 5; scales 50 in 

 lateral line to base of caudal, and several more on latter; 6 scales 

 obliquely back from origin of spinous dorsal to lateral line; about 13 

 scales between origin of spinous anal in a vertical series to lateral line; 

 width of head 2 in its length ; depth of head over posterior margin of 

 pupil about 1^; mandible 2^; fifth dorsal spine If; first dorsal ray l^-f; 

 third anal spine 2^; first anal ray 2; least depth of caudal peduncle 

 2|-; pectoral H; ventral If; ventral spine 2^; snout 4 in head measured 

 from tip of upper jaw; eye 3; maxillary 2f ; interorbital space 3|-. 



Body compressed, rather deep, lower profile a little more evenly 

 convex than upper, and greatest depth falling about midway in post- 

 ventral region. Back but slightly elevated, and with but a slight keel 

 & short distance in front of spinous dorsal, otherwise edges of body 

 rounded. Caudal peduncle compressed, its least depth about 1^ in 

 its length. 



