42 PHILIPPINE POMACENTRHLE 



25 (1906) 281; JORDAN and RICHARDSON, Bull. U. S. Bur. Fisheries 

 27 (1908) 262. 



Pomacentrus scolopseus QUOY and GAIMARD, Voy. Uranie, Zool. 2 

 (1824) 398. 



Dorsal XII, 17; anal II, 13; scales in lateral series 26; with 

 tubules 21 ; between lateral line and origin of dorsal 3 ; between 

 lateral line and vent 10. 



Upper profile of head more strongly arched than the ven- 

 tral; the deep compressed body 1.9 in length; head 3.2; depth 

 of caudal peduncle 6.5. Interorbital space evenly convex, as 

 wide as the length of snout, which is 3.1 in length of head; 

 mouth small, almost horizontal ; maxillary 3.6 in head or as long 

 as diameter of eye, its posterior end below front edge of orbit. 

 Teeth in a double series, truncate. Width of preorbital at pos- 

 terior end of maxillary nearly equal to half diameter of eye; 

 suborbital and preopercle evenly and strongly denticulate ; oper- 

 cle ending in a flat spine. 



Scales completely cover head and body, those on orbital ring 

 and snout well embedded in the skin; a very high sheath of 

 scales covers base of vertical fins. Dorsal spines evenly grad- 

 uated posteriorly, the last one the highest. Rayed dorsal and 

 anal bounded ; caudal with the lobes rounded ; pectoral short, not 

 reaching vent; outer ray of ventral prolonged into a filament, 

 which extends to base of anal spines. 



Blackish brown in alcohol; a large black spot at base of last 

 dorsal rays; a very distinct one superiorly at base of pectoral, 

 extending into axil; a rather faint spot on most of the scales 

 of body ; an indistinct bluish streak on suborbital. 



The above account is based upon a Samoan specimen, 98 milli- 

 meters long, which I examined at Stanford University Museum, 

 there being no Philippine example available. Jordan and Rich- 

 ardson examined several specimens collected by McGregor at 

 Calayan Island, Cagayan Province, and at Cagayancillo, Cagayan 

 Islands. 



This species appears to be close to Pomacentrus lividus, from 

 which it is distinguished by a narrower preorbital and by the 

 scaly orbital ring. It cannot be regarded as identical with 

 Pomacentrus albofasciatus, because the latter has no scales on 

 the inferior and posterior edges of preopercle. It is rather un- 

 common in the Philippines and is known to range from the 

 Okinawa Islands throughout the Indo-Australasian Archipelago 

 and the islands of the tropical Pacific to Polynesia. 



