41. PKIACANTirtrs. 221 



13. Priacantlius dubius. 



Temm. ^ Schleg. Faun. Japon. Poiss. p. 19. 



Caudalis forked. The height of the body is more than one-third 

 of the total length. Angle of the prseoperculiim obtuse, and with a 

 short, flat, serrated spine. Ventral fins elongate, extending to the 

 third anal spine ; fins immaculate ; the dorsal and anal with a blackish 

 margin ; the ventral^ blackish, with a black spot at the base. (Schleg.) 



Japanese Sea. 



14. Priacanthus tayenus. 



Priacanthus tayenus, Richards. Ichth. of the Seas of China, p. 237. 



Caudalis forked, with lengthened tips. The height of the body 

 is one-fourth of the total length ; the diameter of the eye nearly 

 one-half of the length of the head, or twice as large as its distance 

 from the end of the snout. The spine of the prseoperculum long and 

 serrated. All the dorsal and anal spines are feeble and slender ; the 

 second of the dorsal fin is two-thirds of the last, which is the longest ; 

 the ventral fins reach only to the anus. Eose-coloured ; the ventrals 

 with the connecting membrane brown-spotted. 



Chinese Sea. 



a. Adult. Canton. Presented by J. R. Reeves, Esq. 



15. Priacantlius speculum. 

 Citv. 4* Val. vii. p. 471 ; Rbffne Anim. III. Poiss. pi. 11. f. 1. » 



Caudalis forked. The height of the body is equal to the length 

 of the head, and one -fourth of the total ; the diameter of the eye is 

 2|- in the length of the head, and equal to its distance from the end 

 of the snout. Praeoperculum with a very obsolete spine ; the length 

 of the anal fin is one-half of the height of the body. Red : anal 

 edged with blackish; ventrals violet. {Val.) 



Seychelles. 



