228 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



ance in some specimens of faint transverse bands on body. Length, 

 51 to 64 mm. (Macleay.) 

 An imperfectly described species, its generic position not certain. 



ANALYSIS OF SPECIES 



o*. Second dorsal spine not greatly elongated, usually greatly less than body 

 depth. 

 6'. Gerres. Last dorsal spines shorter than soft rays following. 



c^. Premaxillary groove scaleless, usually extends as median naked area 

 into interorbital. 

 dK Body comparatively deep, depth 1% to 2J^. 

 e*. Scales 33 to 43 in lateral line. 

 /'. Pectoral reaches opposite or beyond anal origin. 



g^. Scales 4 or 5 above lateral line to spinous dorsal origin. 

 hK Second dorsal spine 1%, to 2 in head; depth 2 to 2}4. 



i^. Narrovtf black edge on spinous dorsal lucidus. 



i^. No black edge or blotch on spinous dorsal limbatus. 



h^. Second dorsal spine 1% to l^'s in head; depth 2}i to 3__ kapas. 

 g^. Scales 5 to 7 above lateral line to spinous dorsal origin. 

 j^. Second dorsal spine IJ^o to V/s in head. 



¥. Depth 1% to 2^ abbreviatus. 



k^. Depth 2>i to 2^2 poieti. 



j2. Second dorsal spine 1% to 1% in head; depth 2}^ to 



2% oyena. 



p. Pectoral not reaching anal origin macrosoma. 



e^. Scales 47 to 50 in lateral line; dejDth 2}^; 5 rows of brick red spots 



below lateral line darnleyensis 



(P. Body slender, depth 3J4 to SYs oblongus. 



c^. PremaxiUary groove completely scaled in front; pectoral not reaching 

 anal; depth 2% to 2^2. 



IK Scales 38 to 40 in lateral hne. 



ml. Uniformly silvery ovatus. 



m^. Indistinct vertical bands 6 or 7 subfasciatus. 



P. Scales40or 41 in lateral line baconensis. 



6^. Stnistius. Last dorsal spines equally long as soft rays of fin. 



rji. Depth 2 to 2 J-^ scales 46 to 48 rappi. 



V?. Depth 2^1 to 3; scales 45 argyreus. 



o^. Pertica. Second dorsal spine greatly elongated, usually greater than body 

 depth filamentosus. 



