414 THE GEVISE OF TEE 'GUBAC'OA: 



PLATE XXVIII. Fio. A. 

 SERB ANUS CYLINDBIGUS. 



(Giinth. Fish. vol. i. p. 151.) 



D. \\. A. f. L. lat. 100. 



Body elongate, roimded, subcylindrical, its depth being two- 

 sevenths of the total length (without caudal) ; its width is three- 

 fourths of thedepth. The length of the head is one-third of the total 

 (without caudal) ; caudal fin rounded ; praeoperculum rounded, 

 finely serrated, with some rather stronger denticulations at the 

 angle ; the maxillary extends beyond the hind margin of the 

 orbit ; the spinous and soft portions of the dorsal fin are nearly 

 equal in height, and the former is not much longer than the 

 latter ; the pectoral reaches as far as the ventral, terminating at 

 some distance from the vent. Body with large hexagonal brown 

 spots, separated by a white net-work ; five or six of these spots 

 along the back are of a darker colour ; fins with scattered round 

 large brown spots, and with a narrow whitish margin. 



Indian Ocean. 



Specimens up to 16 inches in length have been obtained. The 

 figure is of half the natural size. 



