gO PHILIPPINE POMACENTRHLE 



and the Indian Ocean, and from the islands of the Western 

 Pacific to the Paumotus. It is rather widespread and common 

 in the Indo-Australasian Archipelago. 



ABUDEFDUF BENGALENSIS (Bloch) 



PLATE 16, FIG. 2 



Chaetodon bengalensis BLOCH, Ichth. 5 (1787) 82, pi. 213, fig. 2. 



Glyphisodon bengalensis CUVIER and VALENCIENNES, Hist. Nat. Poiss. 

 5 (1830) 342; BLEEKER, Verb. Bat. Gen. 21 (1847) 11; GUNTHER, 

 Cat. Fishes 4 (1862) 41; BLEEKER, Nat. Verb. Holl. Maats. Wet. 2 

 (1877) 99; Atlas Ichth. 9 (1878) pi. 407, fig. 4; DAY, Fishes of 

 India (1878) 387, pi. 83, fig. 3. 



Abudefduf bengalensis WEBER, Fische der Siboga Exped. (1913) 344. 



Dorsal XIII, 12 to 14; anal II, 12 or 13; scales in lateral 

 series 27 ; with tubules 20 to 22 ; between lateral line and origin 

 of dorsal 5 ; between lateral line and vent 12. 



Body elevated, much compressed, deepest at about anterior 

 portion of spinous dorsal, 1.6 to 1.8 in length; head 2.8 

 to 3.1, its upper profile very steep and almost straight; caudal 

 peduncle strongly compressed, very short and deep, its depth 

 contained 4.2 to 5.8 in length of body. Interorbital space broad, 

 moderately convex, contained from 2.8 to 3.2 in length of head ; 

 the circular, fairly large eye 3.3 to 3.8; the blunt snout 2.9 

 to 3.4, its tip not quite on a level with lower margin of eye; 

 maxillary 3.2 to 3.6 or a little shorter than snout. Mouth 

 slightly oblique, jaws equal; teeth in a single row, having emar- 

 ginate edges. Gill rakers on first arch 22 or 23. Width of 

 preorbital at posterior end of maxillary nearly equal to half 

 diameter of orbit; opercle armed behind with two flat spines. 



The naked area on head includes snout in front of nostrils, 

 orbital ring, and edges of preopercle ; a low scaly sheath at base 

 of vertical fins. Fourth, fifth, and sixth dorsal spines highest. 

 Soft dorsal and anal fins produced along the middle, forming 

 acute angles; caudal fin forked, with rather broad lobes. 



Body olive brown in alcohol, with seven blackish crossbands, 

 which are a little narrower than the interspaces between them ; 

 the first, rather indistinct, across head ; the second from the first 

 two dorsal spines to axil of pectoral ; the third from the fourth 

 and fifth dorsal spines to belly; the fourth from the eighth and 

 ninth spines to anus ; the fifth from the last dorsal spines to the 

 anterior anal rays; the sixth between the middle of soft dorsal 

 and the posterior portion of rayed anal; the seventh in the 

 form of a blotch on posterior half of caudal peduncle and on 

 base of fin. A black margin on anal fin, that of the spinous 



