160 PEECID^. 



the anal ; finally, there are two other bands, much narrower than 

 the anterior ones, on the tail. The fins are otherwise immaculate. 

 The native sea of this species is probably a part of the Pacific. 



inches, lines. 



Total length 8 



Height of the body 2 9 



Length of the head 2 9 



Interspace between the eyes 5 



Diameter of the eye , 7^ 



Length of the fourth dorsal spine 9\ 



Interspace between dorsal and caudal .... 8 



Interspace between anal and caudal 1 



Length of the second anal spine 11 



Length of the second anal ray 13 



Height of a large scale Q 4 



Length of a large scale 3^ 



7. Plectropoma semicinctnm. 

 Cuv. 8f Val. ix. p. 442; Gay, adle, Zool ii. p. 153, Ictiol. pi. 2. f. 1. 



I>-i^- A^-^a• L.lat.45. 



Pra^opcrculum finely serrated behind, and with three equal and 

 strong spinous teeth below, one of which is placed at the angle. 

 Caudalis truncated. Red, with eight brown cross-bands, lost on the 

 sides. The sides of the head with more or less distinct, irregTilar^ 

 brownish streaks. 



San Juan- Fernandez (Chili) ; Australia. 



a. Adult : skin. Austraha. Piu'chased of Mr. Warwick. 



h-d. Half-grown : skins. AustraUa. Purchased of Mr. Warwick. 



e. Half-grown : skin. Swan River. 



/. Half-grown. Sine patria. From the Haslar Collection. 



8. Plectropoma susuM. 



Ckiv. 8f Val. ii. p. 404; Faun. Japan, p. 11. pi. 4 (upper figure); 

 Richardson, Ichthyol. China, p. 230. 



D.n A.i-. 



14 9 



Praeoperculum Math fine denticulations behind, coarser at the 

 angle ; a single spinous tooth below. Caudalis rounded. Brownish 

 gi-ey, with eight or nine darker cross-bands. 



Chinese and Japanese Seas. 



9. Plectropoma dentex. 



Cuv. 8r Val ii. p. 31)4 ; Quoy S^ Gaim. Astrol. p. GCO. pi. 4. f. 2 ; 

 Richardson, Erebus 4'- I'error, p. 117. pi. 57. f. 3-5. 



D. 15. A.|. Csec. pylor. 7. 



Prffoperculum with a few inconspicuous denticulations behind, 



