1. CHJETODON. ^>5 



pragoperculum miuutelj- serrated ; dorsal and anal angular posteriorly. 

 Body mth oblique streaks, the upper ones descending olilitjuely for- 

 wards, the lower ones ascencUng obliquely forwards ; they do not 

 cross each other. Ocular band nearly as broad as the eye, extending 

 to the inferior margin of the interoperculum ; the soft dorsal and 

 anal, and the tail between them, blackish-brown ; caudal white, with 

 a blackish-broATn crescent in the middle ; anal with, a fine lighter 

 hne near the margin ; the posterior part of the ventrals grejish. 

 Red Sea ; Indian Ocean and Ai-chipelago. 



a. Half-grown: not good state. Madras. Presented by J. C. 

 Jerdon, Esq. 



40. Chsetcdon lunula. 



PomacentriLS lunula. Larep. iv. pp. 507, 510, 513. 



Chsitodou lunula, Cia: 4'- Val. vii. p. 59. pi. 173 ; Bkek. Gilolo, p. 57. 



^- i- ^- Tq- ^- lat. 33. L. transv. 8/14. 



The snout is slightly produced, and rather longer than the dia- 

 meter of the eye ; pra-operculmu distinctly serrated ; the soft dorsal 

 and anal rather angular posteriorly. The black ocular band is 

 broader than the eye, and terminates at the pneopercular margins ; 

 the head behind this band is white ; the neck and the anterior part 

 of the back dowiwards to the base of the pectoral are blackish-brown, 

 with three oblique white streaks. The upper margin of the dorsal 

 and the lower of the anal are black ; a black band along the base of 

 the soft dorsal, widening and bent downwards to the tail, which is 

 crossed by it ; a whitish band along the concavity of the former; 

 caudal with a rather narrow black cross-band near its posterior 

 margin. 



Indian Ocean and Archipelago ; Polynesia. 

 a. Adult. Prince's Island. 

 6. Fine specimen. Amboyna. Purchased of Mr. Frank . 



c. Fine specimen. From the Haslar Collection. 



d. Adult : not good state. Old CoUectiori. 



41. ClisBtodon vagabundus. 



Renard, i. 23. 126. 



Chastodon vagabimdus, Linn. Mas. Ad. Fried, ii. p. 71, and Smt i 

 p.^465 ; L. Gm. p. 1251 ; Bl. taf. 204. f. 2 ; Bl. ScL. p. 222 ; Cuv. .$■ 

 I at. vn. p. 50 ; Bleck. Verlmnd. Batav. Genootsch. xxiii. Chtetod. 

 p. 18 (not Benn.). 



^•i- ^-l- L-lat. 30. Vert. 10/14. 

 ^ The snout is slightly produced, pointed, conical, and longer than 

 the diameter of the eye ; prfeoperculum scarcely denticidated ; the 

 soft anal and dorsal fins with the angle rounded. The ocular band 

 IS black, and terminates at the angle of the interoperculum. Body 

 Avith obUquc lines; those above the pectoral descending obliquely 



