NO. 2294. 



FISHES FROM WEST AFRICA— FOWLER. 



221 



notes ^ each scale has a darker center, Valenciennes carefully 

 mentions in detail the fine dark vertical lines. Melliss has a very 

 crude colored figure* which does not show the dark spot at the 

 front of the spinous dorsal or the pectoral origm. Finally, Giinther 

 gives a note on the change of color with age, in Ascension examples.^ 



CHAETODON SANCTAE-HELENAE Gunther. 



Head, 4; depth, 1|; D. XIII, 21; A. Ill, 19; P. ii, 13; V. I, 5; 

 scales, 52 from shoulder to caudal base medially and about 8 more 

 on latter; tubes, 36 in lateral line; 10 or 11 scales above lateral line 



■^A. 





'^^^^<sS# 



Fig. 5.— Chaetodon .sanctae-uelenae GCntuer. 



to spinous dorsal origin, 23 or 24 below to spinous anal origin; head 

 width, 2 in its length; snout, 3|; eye, 3f ; maxUlary 3f ; interorbital, 3. 

 Body orbicular, strongly compressed. Caudal peduncle well com- 

 pressed; length about three-fourths its least depth. Head deep, 

 upper profile more concave than lower. Snout conic, about long as 

 wide. Eye rounded, advanced, hind pupil edge about midway in 

 head length. Mouthsmall;lower jaw slightly protruding. Lips rather 

 thin. Teeth in brush-like bands, though lower much firmer or as if 

 welded into firm cutting edge. Maxillary small, largely concealed 



I Cat. Fish. Brit. Mus., vol. 4, 1862, p. 191. 

 « St. Helena, 1875. p. 109. pi. 21. fig. 2. 



« Rep. Voy. Challenger, Zool., vol. 1, 1880, p. 5. 



