12. ciEUKi:s. :j-l5 



does not fully extend to the origin of the anal, and is 3^ in the total 

 length ; its base is entirely scaleless. The base of the ventral is at 

 some distanee behind that of the pectoral, and falls below the fourth 

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

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

 adjacent ray, and of five 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 villiform bands. 



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

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

 blackish margin, the other fins are colourless. 



inches. Hues. 



Total length 6 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 the ninth dorsal spine 5^ 



of the middle caudal ray 6 



of the upper caudal lobe 1 8 



of the second anal spine 6 



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 3g 



Height of a scale 3| 



7. Gerres abbreviatus. 



Bkeker, Java, i. p. 103, and Verh. Batav. Genootsch. xxiii. Ma^iiid. p. 11. 

 D. ^. A. |-. L. lat. 33. L. transv. 5/10. 



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

 the eye is one-thiid of the length of the head. Prasorbital and pras- 

 opercidum entire. The second spine 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. Colora- 

 tion uniform ; dorsal black-edged. 



Seas of Batavia and Amboyna. 



a. Ad\ilt. Ambojnia. Purchased of Mr. Frank. 



8. Gerres filainentosus. 



7?«,s.sr//, i. p. o2. pi. (i8. 



(lerres filainentosus. Cur. i\- Val. vi. p. 482; BIrclcr, ]'<rh. Tiaf. C-ie- 

 nootsch. xxiii. Miriiid. p. II. 



