492 PROC^EEDINGS OF THE ACADEMY OF [1899. 



labial, frontal and ceratohyal regions scaled, though there is a 

 naked strip above and behind the eye. The bare tracts men- 

 tioned are more or less striated, especially around the eyes and the 

 lores, the prseoperculum is strongly so, and the rest of the tracts 

 on the under surface of the head are papillose. The opercular 

 flap is about median in the depth of the body, the origin of the 

 P. anterior to its extremity at which point directly above, the D. 

 is inserted. The P. extends posteriorly beyond the A. a short 

 distance, radii ii, 13. V. extending for two-thirds of the distance 

 between their origin and that of the A., the rays not being en- 

 larged and with the fin formula i, 5. A. basis not so long as the 

 length of the P., about equal to the V. and with the radii ii, 9. 

 D. ix, 10, its base very long and the rays of nearly uniform 

 length. No row of scales along the bases of either D. or A. 

 Upper and lower rays of the caudal produced into points extend- 

 ing beyond the posterior edge of the fin for about an eye- 

 diameter, the margin of which is deeply convex above sloping 

 obliquely to base of the lower projection. Body covered with 

 very large scales, those on the cheek in 2 series and with 5 or 

 6 scales in the lower row. Lateral line parallel with the back, 

 interrupted, extending over 19 scales before the interruption, 

 after which it starts on the antero -lateral portion of the caudal 

 peduncle where it continues over 6 scales to the caudal. The 

 scales which ensheathe the base of the caudal are 3 in num- 

 ber, enlarged and widened. Tubes of the lateral line branched. 

 General color greenish or greenish olivaceous, with the opercles 

 bluish. A light band from the lores across the snout and a light 

 round spot above each maxillary. Beak white. Total length 

 llf inches. 

 No. 23,292. 



CH^TODONTID^. 



11. Chaetodon auriga Forskal. 



Descrii)t. Animal., 1775, p. 60. 

 Three specimens. Nos. 23,293, 23,294 and 23,295. 



12. Chaetodon semeion Bleeker. 



Natuurk. Tydsch. voor Nederl. Indie, Deel VIII (New Series, V) 1855, 

 p. 450. 



Two examples. No.s. 23,296 and 23,297. 



