124 PROCEEDINGS OF THE ACADEMY OF [1897. 



broad dusky band from anterior part of dorsal across sides behind 

 pectoral and ventral, not hiding the longitudinal markings ; another 

 similar one from posterior part of spinous dorsal to and across mid- 

 dle of anal ; an olive band across caudal peduncle and fins adjacent ; 

 soft dorsal and anal light at base, a broad olive band through mid- 

 dle, this edged with black, the tips narrow, yellowish ; caudal simi- 

 lar but with an additional colorless margin ; olive mottlings at base 

 of caudal; pectoral colorless; ventral plain dusky, lighter at base. 

 In one of the two specimens here noted, there is a large, ill-defined, 

 rosy blotch behind pectoral. 



155. Chaetodon capistratus Linnaeus. 



Chcrtodon capistratus Linnseus, Syst. Nat., Ed. X, 275, 1758 (India) ; Eigen- 

 mann & Horning, Review Chajtodontidse, P. 



156. Pomacanthus paru (Bloch). Angel Fish. 



Chmtodon paru Bloch, Icth., taf. 197, 1787 (Antilles). 

 Pomocanthus aureus, Eigenmann & Horning, Chaetodontidse, 12. 



Head 3f, depth If, eye 3 \ ; dorsal IX, 32 ; anal III, 24 ; scales 

 50 in longitudinal series. 



Body a regular ellipse, caudal peduncle short, less than half its 

 depth. Length of head equal its depth below top of eye. Dorsal 

 and anal falcate, the lobes extending beyond caudal, the posterior 

 portion of each rounded. Ventral spine \\ in head. Caudal trun- 

 cate. A broad, sharp spine at angle of opercle, no other spines on 

 head. Lateral line extending to base of caudal fin. 



Color, in alcohol : Sides silvery gray, each scale edged with white. 

 Head and breast olive (probably blue in life) ; ends of dorsal and 

 anal and middle portion of caudal dusky, ventrals black ; terminal 

 portion of pectorals colorless ; tips of snout dark, remainder white ; 

 a white band beginning in front of ventrals and extending upward 

 through opercle and becoming very narrow on nape; a white band 

 across side behind pectoral, extending along edge of spinous portion 

 of anal, and along the last dorsal spine to edge of fin ; another white 

 band on posterior portion of side fading out on vertical fins, one 

 across base of caudal and another across tip. Some specimens have 

 a median white stripe on top of head, others an indistinct dark one. 



In a specimen 12 inches long the spine at angle of preopercle is as 

 long as eye, while in the smaller it is but f eye. All the white bars 

 are wanting except the one at tip of caudal ; the whole body is 

 nearly uniform gray, the scales narrowly edged with white ; below 

 the pectoral only a few scales white; upper rays of pectoral yellow- 



