gS Direclof s Aiinnal Report. 



A short and narrow but perfecftly distinct ocular band of black 

 extends through the eye and to about the width of the eye above 

 and below the orbit. A short vertical line extends up from the 

 base of the pecftorals just behind the posterior edge of the opercles. 

 Another narrow black line beginning at the base of the fourth 

 dorsal spine extends obliquely downward and forward to near the 

 base of the pe(5torals. Ventrals, pecftorals, anal and caudal fins 

 white. Tip of snout yellow. Iris yellow, invaded by the black 

 ocular band. Four specimens, 3-4 inches in length, were secured 

 inside the coral reef, Agafia, Guam, July 14, 1900. Hab. Western 

 Pacific, Polynesia, Marianas. 



169-171. Chsetodon satifer Bl. 



Head 3; depth 1.50: eye 3.50 into head; D. xiii 24; A. in 20. 

 vScales rather large, about 35 in lateral line. Teeth setiform, the 

 jaws rather projeeling, the under one slightly the longer. A black 

 ocular band, indistinct and narrow above the eyes; below it is dis- 

 tinct, slightly wider than eye and edged anteriorly with white. 

 Color: Whiti.sh; the posterior part, including caudal peduncle and 

 fin, all of soft dorsal, and a broad edge to anal, a bright yellow. 

 Body with about five darkish hypo-dermal bands passing back- 

 wards and upwards on the upper anterior third of body, and about 

 ten passing downward and backward on posterior two-thirds of 

 body. Top of dorsal behind the fifth ray with a round black 

 white-edged spot. The soft dorsal is narrowly edged with black, 

 and has a fine filament from upper posterior part. Soft anal and 

 the caudal with a narrow submarginal line of black, the margin 

 white. On the upper posterior third of the body two or three of the 

 spaces between the black lines are colored 3-ellow, which gives the 

 appearance of there being three yellow lines angularly bent with 

 the angle pointing forward on that part of the body. There are 

 about five bright yellow lines on the forehead, between and above 

 the eyes. The young specimen before me has the upper posterior 

 third of body dusky; descending from the posterior part of this 

 dusky patch is a rather indistinct blackish line extending into the 

 .soft anal fin where it forms an acute angle and extends forward. 

 There is a very slight indication of this marking in the larger 

 specimens. Three specimens, length 4-5 inches, were caught inside 

 the reef. Guam, Julj- 14, 1900. Hab. From the Red Sea through 

 all the Indian Seas to Polynesia, Marianas. 



172. Chsetodon citrinellus (Brouss.). 



Head 3.50; depth 1.75; eye 3.13 into head; D. xiv 21; A. in 17. 

 Scales 6-40-14. Color: Yellowish with round bluish .spots in the 

 skin under the translucent scales, these spots forming more or le.ss 

 distinct, slightly oblique lines from head to tail, less distinct pos- 

 teriori 5-. A black ocular band edged with yellow from base of 



