— 54 — 



tal space, and one fourth the lengtli of tlie head. The 

 dorsal spines increase in size posteriorly, the last one 

 being twice the length of the second; the 1st is equal 

 to the diameter of the eye ; caudal emarginate, with 

 the lobes rounded. Dark brown in spirits ; the pecto- 

 rals and ventrals brownish black towards their extre- 

 mities, the other fins black ; each scale of the head and 

 body with a dark edge and lighter centre ; those on 

 the posterior half of the body with two or three blue 

 dots forming longitudinal rows ; two fine blue lines on 

 the forehead converging to the snout, and extending 

 backwards to the origin of the dorsal fin ; two ^blue 

 lines across the preorbital and through the eye to its 

 posterior margin ; the spinous dorsal with a jet black 

 margin ; a black spot above the operculum just under 

 the origin of the lateral line ; another one on the up- 

 per part of base of the pectoral, none on the dorsal fin 



Or tail, 



Pomacenteus pihei 



D. 14/14. A. 3/15. L. lat. 27. L. tr. 2 3/8-9 



T'he height of the body is contained 2f, the length 

 of the head 4-i- in the total. The upper and lower pro- 

 files of the head are equally and regularly curved ; the 

 interorbital space, which is somewhat convex, is a 

 triple wider than the diameter of the orbit ; preoper- 

 culum strongly serrated ; sub-orbital finely serrated, 

 the first spine being considerably larger than the rest 

 and separated from them by a notch. The dorsal spines 

 are short, increasing in length posteriorly ; tlie first 



