FISHES OF THE PHOENIX AND SAMOAN ISLANDS 153 



CHAETODON RAFFLESII Bennett 



Chaetodon rafflesil Bennett, Memoir of the life and public services of Sir 

 Stamford Rallies, p. 689, 1830. 



115046, liose Island reef, June 11-14, 1939, 1 specimen. 

 52325, Apia, Samoa, Jordau and Kellogg, 4 specimens. 



CHAETODON PELEWENSIS Kner 



Chaetodon pelciccnsis Kner, Sltzb., Akad. Wiss. Wien, vol. 57, pt. 1, p. 306, 1808. 



11504.5, Rose Island reef, June 11-14, 1939, 5 specimens. 



115044, Tutuila Island, reef at Pagai, June 4, 1939, L. P. Schultz and Frank 

 Taiga, 1 specimen. 



115043, Rose Island lagoon, June 12 to 20, 1939, 2 specimens. 

 52196, Apia, Samoa, Jordan and Kellogg, 4 specimens. 



Subfamily Pomacanthinae 



KEY TO THE SPECIES OF POMACANTHINAE FROM THE PHOENIX AND SAMOAN 



ISLANDS 



la. Scales in about 90 irregular rows crossing side of body ; hind margin of 

 preorbital not free ; dorsal rays XIV, 19 to 21 ; anal III, 18 to 21 ; color 

 pattern different on specimens longer and shorter than about 100 mm. in 

 length ; our specimens 48 to 85 mm. with following color pattern : General 

 color blackish with a wide white ring just in front of caudal peduncle, 

 then around this a pale semicircular line, then a wide white semicircular 

 band extending on soft dorsal and anal ; anteriorly a pale crescentic line, 

 then a white cre.scentic band just behind base of pectorals ; a white band 

 extending from nape back of eye to base of preopercular spine, thence 

 curving to base of pelvics, two others on head one below front of eye 

 and one across snout to isthmus; margin of dorsal white; iwsterior half 

 of caudal fin pale, basal portion blackish with one or two tran.sverse white 

 lines ; caudal peduncle with one or two transverse white lines ; these white 

 lines on body and fins are variable and often between those described 

 will occur shorter and paler lines in addition ; pelvics black ; middle of 

 chin with white patch. Adults of this species with a black patch above 

 pectoral that extends on chest and throat ; 15 to 25 yellowish bands on 

 body, nearly horizontal but inclined a little upward, reaching dorsal and 

 anal fins ; a brownish band from interorbital space through eye to angular 



spine Pomacanthus imperator (Bloch) 



16. Scales in about 50 rows on side of body; lateral line terminating near end 

 soft dorsal. 

 2a. Interoperculum " without spines, posteriorly with a narrow branch reach- 

 ing to siiboperculum ; preorbital convex, without .spines, its hind margin 

 not free, not serrated; interorbital width greater than eye; body with 

 about seven or eight black-bordered, white (bluish in life), nearly trans- 

 verse bands, the first on trunk from first dorsal spine to above base of 

 pectorals, the last on caudal peduncle with another bluish bar across 

 base of caudal fin, rest of fin pale (yellow in life) ; about four or five 

 bluish bands across anal, these continuations of those on body ; dorsally 

 body bands continuing on dorsal fiii, posterior three-fourths of soft dorsal 

 blackish ; mouth pale ; median band on snout ; curved one on inter- 



1" After Webor niul dc Rojuifort, I^.^O, p. 122. 



