28 POMACENTKID^. 



total length ; praeorbital not, praeoperculum scarcely serrated ; the 

 lower prseopercular limb is sealeless. The dorsal spines increase in 

 length towards behind ; caudal fin enaarginate. Brownish, each 

 scale blue in the centre ; two blue streaks diverge from the snout 

 and run along the upper margin of the orbit, their continuation on 

 the nape appearing as an oblong bluish spot. Two distant bluish- 

 white spots above the lateral line, one on the base of the last dorsal 

 rays and one on the base of the last anal rays. A black spot edged 

 with white anteriorly on the back of the taU ; a similar superiorly at 

 the root of the pectoral. 

 Lower California. 



a. Eighteen lines long. Cape St. Lucas. Presented by the Smith- 

 sonian Institution. — One of the typical specimens. 



Although this species is very similar to the preceding, I consider 

 it as specifically different on account of its body being rather more 

 elevated, and also on account of the sealeless lower limb of the 

 praeoperculum. 



27. Pomacentrus rhodonotus. 

 Bleek. Sumatra, ii. p. 282. 



D. ||. A. ^. L. lat. 24. 



The height of the body is contained twice and two-thirds in the 

 total length ; prseorbital not serrated. The dorsal spines increase in 

 length towards behind; caudal fin emarginate, with the lobes 

 rounded. The upper part of the head and the anterior part of the 

 back brownish-red, the remainder blackish-violet. The spinous 

 dorsal red ; the soft dorsal violet, with a large black ocellus, edged 

 with blue, between the last dorsal spine and the sixth ray ; anal 

 black. {Bl.) 



Sumatra, Nias. 



28. Pomacentrus scolopsis. 



Pomacentrus scolopseus, Quoy i^ Gaim. Voij. Uran. Zool. p. 398. 



tseniops, Cuv. 8f Val. v. p. 423 ; Less. Vmj. Coqu. Zool. ii. p. 190. 



pi. 28. fig. 2 ; Bleek. Sumatra, iii. p. 512 (not Banka, ii. p. 729). 

 ? emamo, Less, I. c. p. 190. 



D -^. A. -#-,. L. lat. 27. L. transv. 2/10. Vert. 12/15. 



16-17 13-14 ' ' 



The height of the body is two-fifths of the total length ; prae- 

 orbital serrated. The posterior dorsal spines are scarcely longer 

 than the middle ones ; caudal fin slightly emarginate, with the lobes 

 rounded. Blackish-brown, each scale with a silverj- dot ; a curved 

 silvery line round the lower part of the orbit. A black spot on the 

 base of the three last dorsal rays, and another superiorly in the axil 

 of the pectoral. 



He de France ; East Indian Archipelago ; Polynesia. 



a-cZ. Half-grown. Feejee Islands. Voyage of the ' Herald.' 

 e. Half-grown. Presented by Dr. P. v. Bleeker. 



