1. CH-ETODON. 29 



with a blackish marginal line, the margins themselves being yellowish 

 in the former and greyish in the caudal ; veutrals yellow. 

 From the Red 8ca to I'oljTiesia. 



a, b. Fine sjoecimens. Amboyna. Purchased of Mr. Frank. 

 c. Adult. Feejee Islands. Voyage of the ' Herald.' 



48. Chaetodon ocellicauda. 

 Cuv. ^ Veil. vii. p. 69. 



D. ^. A. :^. L. lat. 35. L. transv. 6/16. 



Snout produced, longer than the diameter of the eye; the dorsal 

 and anal fins rounded posteriorly. Body with darker streaks, 

 descending obliquely forwards. The ocular band is much narrower 

 than the eye, and reaches from the origin of the dorsal across the 

 chest. A large black, Mdiitc-cdged s2)ot on each side of the tail, 

 occupying its M'hole depth. Ventrals white ; dorsal and anal with 

 a whitish margin ; caudal with a narrow blackish streak across its 

 middle. 



Indian Ocean. 



a. 1| inch long. Indian Ocean. 



b. Adult. From the Collection of the Zoological Society. 



c. ? Adult. 



49. Chsstodon aureus. 



Chastodon aureus, Temm. 8f Sclilcq. Faun. Japon. Poks. p. 81. pi. 42. 

 f. 1 ; Richards. Ichth. Chin. p. 246. 



The snout is produced, and longer than the eye ; prEeoperculum 

 serrated ; the dorsal and anal fins rounded posteriorly. The upper 

 lip blackish ; the ocular band is as wide as the orbit, and extends 

 from the nape of the neck to the lower margin of the interoperculum ; 

 body with rather oblique, dark longitudinal streaks ; dorsal and anal 

 with black margins, separated by a yellow line from the ground 

 colour ; caudal with a whitish mai'gin, separated from the ground 

 colour by a black line ; ventrals yeUow. (ScJdeg.) 



Sea of Japan. 



50. Chaetodon xantliurus. 

 Bleek. Act. Soc. Indo-Nederl. ii. Arnhoina, p. 53. 



The snoiit is slightly produced, pointed, and about equal in length 

 to the diameter of the eye ; pncoperculum denticulated ; the dorsal 

 and anal fins ^vith the posterior angle rounded. The ocular band is 

 narrower than the orbit, edged ^^^ith white, and reaches superiorly 

 not to the nape of the neck, inferiorly to the inferior margin of the 

 interoperculum ; a horseshoe-like, black, white-edged sjjot across 

 the neck. The anterior part of the body with oblique \-iolct streaks, 

 foUowdng the scries of the scales ; th(>se of the upper parts descending 



