lOO Dii'ecior's Annual Report. 



direclion, and apparently there is no difference in the coloring on 

 the sides of the fish. Day's figure also shows an additional yellow- 

 ring around the snout. Four specimens were secured. Length 

 about 2-4 inches. Guam, July 14, 1900. Hab. Seas of India to 

 Ihe Malay Archipelago, Marianas. 



174. Chaetodon ornatissimus (Solander). 



Young: Head 3; depth 1.36; eye 2.50 into head; D. xii 24; 

 A. Ill 23. Scales in lateral line 55. The snout is but slighth' 

 pointed and shorter than diameter of the eye. Fins: Ventrals and 

 caudal yellow, the latter with black cross band in middle. Pe(5forals 

 white, about equal in length to ventrals. Posterior edge of soft 

 dorsal and anal yellow with black tips. Color: Yellowish white 

 with seven dusky 3'ellow oblique bands, about half as wide as orbit, 

 extending backward and upward along sides of the body. A black 

 band along the division of opercle and preopercle. A black ocular 

 band, equal in width to iris, extends through the e^e and around 

 head; it is widest on forehead. Interorbital space black. A black 

 line around snout and chin. Lower jaw black. Two specimens were 

 secured inside the coral reef of Guam, June 9, 1900. Length 1.75 

 inches. Hab. From the Molucca vSea to Polynesia, Marianas. 



175. Chsetodon lunula Lacep. 



Head about 3; depth 1.50; eye 3.50 into head, 1.20 into snout; 

 D. XII 24; A. Ill 18. Snout slightly produced. Teeth setiform. 

 Fins: Yellowish, white in spirits. Scales in lateral line 42. Color: 

 A black ocular band, broader than eye, crossing the interorbital 

 space and extending to branchiostegals. Head behind this band 

 is white. Snout and throat yellowish white, white in spirits. Bor- 

 dering on the white band on back of head is a triangular black area 

 extending back to base of fifth dorsal spine; three oblique 3-ellow 

 lines extend across this black area up and backwards towards the 

 dorsal, the lower one forming the lower border of the black area. 

 About the seventh dorsal spine a black line begins, which widens 

 and extends along the base of soft dorsal, forming a band on caudal 

 peduncle. This black band on caudal peduncle is bordered front 

 and rear with yellow. The remaining surface of fish is yellowish, 

 slightly dusk}- above, with about fourteen indistinct dusky, oblique, 

 epidermal lines on the sides extending upward and back. Caudal 

 fin almost square, broadh' white-tipped, with a fine sub-terminal 

 curved line of black. In specimens preserved in spirits the yellow 

 coloring all fades into white. Variations: The young have a black 

 spot with white rim on the soft dorsal. In "Fishes d. Sudsee" this 

 species is figured as having the ocular band extending down to the 

 margin of the preopercle. It is so described by Day in "Fishes 

 of India". Thus differing from the Guam specimens which have 

 the ocular band extending to the branchiostegals. The Guam 



