FISHES OF THE PHOENIX AND SAMOAN ISLANDS 145 



from interorbital region through eye to angle of pre- 

 opercle is wider than eye at orbit ; pectoral pale ; caudal 

 with hyaline margin, then a submarginal black band, 

 followed by another diffuse one across the rays; dorsal 

 rays XII, 23 to 25; anal III, 18 to 20; scales about 



38 to 40 Chaetodon lunula (Lacepede) 



20&. Anal fin with hyaline or pale margin. 



21o. On trunk descend two triangular wide vertical bands, 

 one from about third and fourth dorsal spines to below 

 lateral line or to below pectoral, the second from 

 front of soft dorsal including the last dorsal spines 

 to about lateral axis ; 10 to 15 vertical dark lines often 

 rather faint on sides of trunk ; caudal peduncle with 

 blackish ring; eye crossed with a white bordered 

 brownish band as wide as eye that begins much nar- 

 rower on nape and runs to branchiostegals, where 

 it is not united with its fellow below; black caudal 

 I'ing faintly continued on anal and soft dorsal fins as 

 two darkish linos; margin of soft dorsal with faint 

 darkish lines; dorsal rays XII, 24 to 27, anal III, 

 20 to 22, scale rows about 25— Chaetodon facula Bloch 

 21&. About six obliquely transverse brownish lines above 

 pectoral fin, and at right angles to these about 11 

 similar brownish lines extend obliquely downward; 

 across caudal peduncle a black band extends from 

 dorsal and anal fins; a black band, about width of 

 eye, extends from nape through eye, ending on 

 branchiostegals ; pectoral fin pale ; margin of caudal 

 fin white then a submarginal black band across center 

 of fin semi-lunar-shaped ; margin of anal white then 

 a submarginal narrow black band ; margin of soft 

 dorsal with black band anteriorly below it a white 

 band increasing in width posteriorly so that it oc- 

 cupies the whole of soft dorsal except base posteriorly ; 

 basal part of soft dorsal with a wide crescent-shaped 

 black band that crosses caudal peduncle and extends 

 nearly to middle of soft anal fin rays ; tips of dorsal 

 spines white, then a submarginal black area, then 

 white, basal black band on soft dorsal extends forward 

 as a narrow black band along middle of spiny dorsal 

 fading near its origin ; dorsal rays XIII, 22 to 25 ; 

 anal III, 20 to 22, scale rows about 30 to 35. 



Chaetodon vag'abundus Linnaeus 

 19&. Caudal fin pale without black transverse lines or bands. 

 22a. Color pattern on body not consisting of several blackish 

 lines or I'ows of spots on scales, but upper part of body 

 blackish, this color extending upon spiny dorsal, thence 

 posteriorly along soft dorsal to encompass the caudal 

 peduncle ; under about ninth or tenth dorsal spines on 

 body Is a white spot, lower edge touching lateral line, 

 a second white area (a spot in young) on anterior 

 one-third of soft dorsal base joins light color of lower 

 half of body; two parallel lines pass through eye one, 

 at front and other at rear of eye, not meeting above 



