12. (iKKltKs. Ji-lO 



docs not fully extend to the orij^in of the tinal, luid ia 3| in the total 

 hsiifijth ; its base is entirely sealeless. The base of the ventral is at 

 some distanee behind that of the jjeetoral, and falls below the foui'th 

 dorsal spine ; it does not extend to the vent, and is G| in the total 

 length; it is eomposed of one straight spine, two-thirds of the 

 adjacent ray, and of fjve rays, the last of which is split into two 

 branches to its base. 



The scales are very thin, not ciliated, scarcely higher than long ; 

 one of the largest covers one-half of the eye. There is an exceedingly 

 long squamose flap at the exterior base of the ventral. The lateral 

 line is slightly curved. 



The teeth are minute, in villifoim bands. 



The back is reddish olive, with some reflecting longitudinal streaks ; 

 the sides and the belly are silvery. The dorsal fin has a broad 

 blackish margin, the other fins arc colourless. 



inches, lines. 



Total length 8 



Height of the body 2 3 



Length of the head 1 4 



Diameter of the eye 5 



Length of the third dorsal spine 11 



of tlie ninth dorsal spine 5^ 



of the middle caudal ray 



of the upper caudal lobe 1 8 



of the second anal spine G 



of the third anal spine 7 



of the pectoral fin 1 10 



of the ventral fin 1 



of the squamous flap 9 



of a scale 34 



Height of a scale 3| 



7. Gerres abbreviatus. 



Bleeker, Java, i. p. 103, and Verh. Jiatav. Genootsch. xxiii. Manid. p. 1 1 . 

 D. ■^. A. J. L. lat. 33. L. transv. 5/10. 



The height of the body is 2| in the total length ; the diameter of 

 the eye is one-thLrd of the length of the head. Pracorbital and praj- 

 opcrculum entire. The second s})ine of the dorsal fin more than 

 one-half of the height of the body, and nearly equal to the length 

 of the head. The second and third anal spines strong, and rather 

 longer than the rays, one-third of the height of the body, C'oloia- 

 tion uniform ; dorsal black- edged. 



Seas of Batavia and Amboyna. 



Adult. Amboyna. Purchased of Mr. Frank. 



8. Genres filamentosus. 



Rnssr//, i p. 52. p!. r.8 



'^icrrcs filam<>ntosns,' ^Vr. .V In/. \'/. p. 4^2; Jl'-rlrr. I'rrJi. Jhil. f,',- 

 tiootscli. xxiii. Mfciiiil. p., 11. 



