26 POMACENTKU)^. 



operculum ; sides of the snout with blue spots or streaks ; no spot on 

 the back of the tail. 



East Indian Archipelago. 



a. Four inches long. From Dr. P. v. Bleeker's Collection. 



24. Fomacentms bankanensis. 



Pomacentrus taeniops, Bkek. Banka, ii. p. 729 (not Cuv. ^ Vol.). 

 bankanensis, Bleek. Sumatra, iii. p. 513. 



D. f^. A. j^j. L. lat. 26-28. L. transv. 3/9. 



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

 total length ; preeorbital denticulated. The dorsal spines increase in 

 length towards behind; caudal fin subtruneated. Brownish (in 

 spirits), caudal yeUow, each scale with a bluish dot ; two bluish lines 

 along the forehead, convergent on the snout and extending on to 

 the back ; two similar lines through the iris to the maxillary ; a 

 dark-blue spot superiorly on the operculum ; a black ocellus edged 

 with white on the base of the ninth, tenth and eleventh dorsal rays. 



East Indian Archipelago. Sea of China. 



a. Chiaa Sea. Presented by Vice- Admiral Sir E. Belcher, C.B. 



? h. From Dr. P. v. Bleeker's Collection as P. bankanensis. — This 

 specimen differs from the other and from Bleeker's description 

 in several points : A. ^ ; no hlue lines on the upper side of the 

 head ; no blue dorsal ocellus. It is similar in coloration to P. 

 chrysurus, Brouss. 



25. Pomacentrus rectifrsenum. 



Pomacentrus rectifrsenum, Gill in Proc. Acad. Nat. Sc. Philad. 1862, 

 p. '148. 



D. 1^. A. ~. L. lat. 26. L. transv. 3/10. 



10 14 ' 



The Height of the body is a little less than one-third of the total 

 length ; prseorbital without, praeoperculum with a very fine, and in 

 young specimens without serrature. The lower proeopercular limb 

 scaly. The dorsal spines increase in length towards behind ; caudal 

 fin emarginate. Brownish, or bluish-olive, the scales on the back 

 and above the anal with a bluish spot. Three or five blue streaks 

 along the forehead and snout, the middle single one being sometimes 

 indistinct, the outer pair a little deflexed behind the eyes and con- 

 tinued into a band or series of dots above the lateral line. No dark 

 spot above the operculum ; a black spot edged with bluish-white 

 anteriorly, on the back of the tail, immediately behind the dorsal 

 fin : yoimg specimens with a whitish spot on the base of the last anal 

 rays, and with a black ocellus anteriorly on the soft dorsal, both 

 gradually disappearing with age. 



Coasts of Lower California and Central America. 



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

 sonian Institution. — One of the types of P. rectifrcenum, Gill. 



