FISHES OF THE PHOEXIX AND SAAIOAN ISLANDS 181 



two-thirds, base black and tips dusky ; top of 



head scaled forward to almost opposite nostrils. 



Abudefduf amabilis (De Vis) 



2ijh. Opercle without pale spot ; color grayish blue 



or blackish (blue in life) without pale bars on 



body ; edge of dorsal fin blackish, middle pale, 



base blackish in males, whole fin pale in females ; 



anal pale, edge blackish in males; a black band 



extending from snout through eyes ; whole base 



of pectoral more blackish than body ; a large 



prominent black spot at rear base of soft dorsal 



but not extending on dorsal edge of caudal 



peduncle ; tips of first rays of pelvics filamentous, 



and blackish, rest of fin pale to dusky ; one-half 



or one scale above end of lateral line. 



Abudefduf taupou Jordan and Seale 

 18&. A black spot at dorsal edge of base of caudal fin, prominent 

 at all ages ; opercle with a pale area ; a blue streak from 

 snout past dorsal edge of eye, then wider behind eye as it 

 passes along base of dorsal and surrounds a black spot near 

 base of last three or four dorsal spines ; a black spot at rear 

 base of soft dorsal, often obscure or lacking on adult 

 specimens but prominent on young, this spot extending on 

 caudal peduncle a little, the blue streak meeting its fellow 

 behind this black spot on upper edge of caudal peduncle ; 

 one and one-half to two scales above end of lateral line ; 

 suborbitals, preorbitals, and preopercular edge naked ; top of 

 head not scaled to opposite nostrils; upper pectoral base 

 pale; anus colored like body; dorsal rays XIII, 12; anal 



II, 12 Abudefduf leucopomus (Cuvier) 



166. Dorsal spines XII. 



27ff. Dorsal soft rays 11 ; anal II, 11 ; suborbitals and preopercular 

 edge scaled ; preorbital scaled posteriorly ; top of head scaled 

 to almost opposite nostrils ; whole base of pectoral blackish ; 

 rear base of soft dorsal and dorsal side of caudal peduncle 

 without black spot ; caudal fin emarginate, upper and lower 

 rays filamentous, blackish in contrast to pale middle rays ; color 

 dark brown or blackish, fins dark, margin of soft dorsal and 

 anal blackish ; teeth chiefly in one row, with small inner teeth 

 between the larger ones— Abudefduf filamentosus (Macleay) 

 27&. Dorsal soft rays 15 to IS, rarely 14. 



2Sa. Color not plain, but with one or more distinct white or black 



vertical bars on sides of body; dorsal rays XII, 17 or 18; 



anal II, 13 or 14; 2 to 2Vj scales above end of lateral line. 



29a. Ground color blackish with four pale vertical bars, one past 



opercle made up of large pale spots, next under middle of 



length of pectoral fin, third from end of spiny dorsal to 



anal, and last from behind rear base of soft dorsal to same 



position of soft anal fins ; upper edge of caudal peduncle 



black where black band encircles it ; caudal fin pale or 



yellowish, distaily colorless; no spot at rear of soft dorsal 



or on base of pectoral fin; anus colored like body; teeth 



uniserial projecting forward; suborbital and preopercular 



