no. 1822. NE^Y PHILIPPINE FISHES— SMITH AND RADCLIFFE. 323 



graduated; fourth spine 1.90 in length, long, filiform, provided with 

 a broad free membrane extending to tip of spine, other spines except 

 last graduated; soft dorsal moderate, not so high as in H. monoceros, 

 margin rounded; caudal truncate; anal deep, obtusely angled, spines 

 graduated; ventrals 1.14, rounded, short, not reaching vent, their 

 base under base of pectorals; pectorals nearly as long as head. 



Color in alcohol: Head and nape encircled by alternating bands of 

 black and dusky silvery- white ; the first band, jet black in color, 

 encircles the mouth and extends backward on snout to anterior nos- 

 tril; the second, silvery-white, runs parallel with first and extends 

 backward on top of head to bony projections over eyes; the third, 

 the black ocular band, about width of eye, crosses forehead, extends 

 downward in front of and through anterior seven-eighths of eye, 

 meeting its fellow on under surface of head; the fourth, dusky silvery- 

 white, covers space between ocular band and base of dorsal and 

 extends downward across posterior border of eye and opercular region, 

 meeting its fellow on breast, where it widens out to base of ventrals; 

 posterior border of opercle black; tips of lips yellowish; trunk pos- 

 terior to vertical from insertion of dorsal to base of ventrals, including 

 ventrals and anal, black; a lighter area, shading into the black, widest 

 ventrally, extends from third to fifth dorsal spines downward and 

 backward to base of anal, shading into black coloration of anal rays; 

 remainder of dorsal, caudal, posterior portion of caudal peduncle and 

 pectoral rays golden yellow; base of pectoral and region below, includ- 

 ing ventrals and anal spines, jet black. 



Color in life: Upper portions of silvery bands on head, before 

 described, slightly dusky, with a faint brassy wash; first and second 

 dorsal spines black; third spine gray, the color continued as a lighter 

 band diagonally across the black coloration of trunk to middle of anal; 

 centers of scales on darker ventral portions of trunk somewhat pearly 

 or purplish margined with darker brown; scales under the posterior 

 portion of dorsal black, particularly about margins, the centers with 

 a steel bluish area, which becomes smaller toward base of anal; 

 dorsal from tip of fifth spine to base of sixth and diagonally along its 

 basal edge, including the upper and hinder portion of caudal peduncle, 

 and all of cadual fin, cadmium orange; front and posterior margins 

 of anal purplish black; base of pectoral, including base of rays and all 

 of the scaled portion, blackish, the remainder lemon yellow; ventrals 

 black. 



This species resembles H. monoceros, but is readily differentiated 

 from it by the form of the body, being slenderer and not so nearly 

 circular, the contour lines of dorsal and ventral surfaces rather 

 strongly converging posteriorly; by the longer head and straighter 

 dorsal outline of head; by the smaller eye; by differences in the aver- 

 age number of dorsal and anal rays; by the position of the spinous 



