5. POMACENTRUS. 31 



total length ; praeorbital not serrated, half as wide as the orbit ; snout 

 rather shorter than the eye, the diameter of which equals the width 

 of the interorbital space. The nine posterior dorsal spines are equal 

 in length, half as long as the head. Caudal fin emarginate, with the 

 lobes rounded. Brownish (in spirits) ; a bluish line across the fore- 

 head, another curved round the lower half of the orbit ; cheeks and 

 base of the anal with bluish dots ; fins immaculate, pectoral, dorsal 

 and caudal light- coloured, ventrals and anal blackish ; no axillary 

 spot. 



East Indian Archipelago. 



a. Two inches long. — The British Museum has received this specimen 

 from Dr. v. Bleeker's Collection as P. tceniops, from which it 

 difters in the number of the fin-rays, in the structure of the 

 prteorbital, and in the coloration. 



35. Pomacentrus leucostictus. 



Pomacentrus leucostictus, MiilJ. ^- Trosck. in Schomburffk's Barhad. 

 p. 674. 



D. ~. A. ^^. L. lat. 28. L. transv. 3/9. Ceec. pylor. 3. 



The height of the body is contained twice and three-fourths iu the 

 total length ; interorbital space slightly convex ; the upper profile of 

 the head arched ; only the posterior part of the infraorbital ring is 

 minutely denticulated. The lower praeopercular limb scaly. The 

 upper and lower teeth nearly equally broad. Caudal fin forked, with 

 the lobes rather pointed. No spot on the back of the tail ; a white 

 dot on the base of the last anal rays. Either nearly uniform brown, 

 with scarcely any dots on the snout and the base of the dorsal and 

 anal fins, or brownish -black above, yellowish-green on the sides and 

 on the belly, and yellow on the posterior part of the tail and on the 

 caudal fin ; numerous bluish-white dots on the head, back, and on the 

 soft portions of the dorsal and anal fins, the dots being less numerous 

 on the sides. 



Atlantic coasts of tropical America. 



a, h-c. Fine specimens. Puerto Cabello. Purchased of Mr. Brandt. 

 d-e. Young. Jamaica. From Mr. Gosse's Collection. 

 f~g. Adult. America. From Dr. Parnell's Collection. 



Young specimens have a distinct black ocellus on the middle of 

 the anterior soft dorsal rays ; blue dots are crowded round it, form- 

 ing a blue ring. Snout with two short, convergent blue lines supe- 

 riorly. 



36. Pomacentrus fascus. 



Pomacentrus fuscus, Cut. Sf Vol. v. p. 432, 



variabilis, Casteln. Anim. tiouv. ou rares, Poiss. p. 9. pi. 3. fig. 3. 



nigricans, pt., Grortov. Syst. ed. Gray, p. 61. 



D. jJ^. A. -i. L. lat. 28. L. transv. 3/10. 



The height of the body is contained twice and three-fifths in the 



