1. CH^TODON. 29 



with a blackish marginal line, the margins themselves being yellowish 

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

 From the Red Sea to Polynesia. 



a, h. Fine specimens. Amboyna. Purchased of Mr. Frank. 

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



48. Chsetodou ocellicauda. 



Cm. 8f Val. vii. p. 69. 



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



Snout produced, longer than the diameter of the eye; the doi-sal 

 and anal fins roimded 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, white-edged spot on each side of the tail, 

 occupying its whole 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. Chsetodon aureus. 



Ch^todon aureus, Temrn. 8f Schleg. Faun. Japon, I'oiss. p. 81. pi. 42. 

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



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

 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 interopexculimi j 

 body with rather obHque, daric longitudinal streaks ; dorsal and anal 

 with black margins, separated by a yeUow line from the gromid 

 colour ; caudal with a whitish margm, separated from the ground 

 colour by a black line ; vfentrals yellow. (ScJileg.) 



Sea of Japan. 



50. Chsetodou xauthurus. 

 Bleek. Act. Soc. Indo-Nederl. ij. Atnboina, p. 53- 



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

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

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

 narrower than the orbit, edged with white, and reaches superioi'ly 

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

 interoperculum 5 a horseshoe-like, black, white-edged spot across 

 the neck. The anterior part of the body' with oblique violet streaks, 

 folio ning the series of the scales ; those of the upper parts descending 



