38 PHILIPPINE POMACENTRUWE 



ABUDEFDUF LEUCOGASTER (Bleaker) 



Glyphisodon leucogaster BUSBKER, Verb. Bat. Gen. 21 (1847) 20; 



GUNTHER, Cat. Fishes 4 (1862) 46; BLEEKER, Nat. Verh. Holl. 



Maats. Wet. 2 (1877) 108; Atlas Ichth. 9 (1878) pi. 407, fig. 6; 



DAY, Fishes of India (1878) 388, pi. 81. fig. 3. 

 Abudefduf leucogaxter FOWLER and BEAN, Proc. U. S. Nat. Mus. 62 



(1922) 48. 



Dorsal XIII, 11 or 12; anal II, 12 to 14; scales in lateral 

 series 24 to 26 ; with tubules 15 or 16 ; between lateral line and 

 origin of dorsal 4 ; between lateral line and vent 9 or 10. 



Body strongly compressed, subcircular in outline, its depth 

 1.6 to 1.8 in length; head 2.8 to 3.2; depth of caudal peduncle 

 6 to 6.6. Interorbital space broad, its width 2.5 to 2.9 in length 

 of head ; eye rounded and rather large, 2.6 to 3.3 ; snout shorter 

 than eye, 3.1 to 3.4 in head or nearly as long as maxillary which 

 is contained 2.9 to 3.3 in head. Teeth compressed, in a single 

 series, the incisors short and very small. Gill rakers on first 

 arch 27 or 28. Preorbital very narrow, having a shallow notch 

 in front. 



Head and body completely covered with scales. Middle dorsal 

 spines as high as the last. Soft dorsal angular; the rayed anal 

 rounded ; caudal forked, with the lobes pointed ; pectoral extend- 

 ing to origin of anal fin; ventral longer than pectoral, its first 

 ray filamentous. 



Yellowish brown in alcohol, with scattered blue dots in the 

 young. Base and axil of pectoral with a prominent black spot 

 superiorly; posterior two-thirds of soft dorsal and hind third 

 of rayed anal yellowish, the other portions of the fins blackish ; 

 upper and lower margins of caudal washed with blackish. 



I have examined twenty-two specimens, 40 to 90 millimeters 

 long, coming from Calapan, Mindoro; Cabalian, Leyte; and 

 Jolo, Bungau, and Sibutu Islands, Sulu Archipelago. Two of 

 the specimens from Cabalian, collected in May, 1920, are females 

 about ready to spawn. 



In the Bureau of Science aquarium there are three living 

 specimens, which are dark brown merging into golden yellow 

 on belly and with a silvery center to each scale; caudal peduncle 

 yellowish as is the fin with the exception of the middle rays which 

 are whitish ; posterior portion of rayed dorsal and anal yellowish ; 

 ventrals yellowish, pectoral whitish. 



This species was first recorded in the Philippines from Zam- 

 boanga, Mindanao, by Fowler and Bean, and is known to occur 

 from the Red Sea, east coast of Africa, and the Nicobars to the 

 Indo-Australasian Archipelago. 



