FISHES OF THE PHILIPPINE AND ADJACENT SEAS 233 



We think the specimens listed below are likely the Acanthurus 

 pyroferus Kittlitz. According to Valenciennes the figure is 154 mm. 

 long, snout rather pointed, color brown, caudal and anal blackish 

 with yellow border to former and with yellow, vertical, shoulder 

 patch. However none of our examples have the " caudal with a broad 

 yellow posterior margin" as Giinther translates. It is likely his 

 Acanthurus tennentii is the same though the dorsal is given with 23 

 soft rays and the anal with 22, his specimen was a skin but 127 mm. 

 long. It is also said to have the caudal with "a broad white 

 margin." 



8152. Alibijaban Island, Ragay Gulf, Luzon. March 9, 1909. Length 325 

 mm. Sides dark umber brown, fading to series of very narrow slaty stripes 

 through center of scale rows, with yellowish or olive interspace somewhat 

 greater than stripes; yellowish interspaces orange posteriori}' and anteriorly 

 obsolete. Top of head and interorbital with purplish shades, latter much 

 striped with olivaceous. Breast v/ith olive and purple undulating stripes, 

 merging with blackish of abdominal regions. Lemon yellow tints about eye. 

 Purplish horse-shoe behind upper angle of gill opening. Dorsals olive, fading 

 greenish olive, edge bright purple and purple stripe along base; hind rays 

 purplish and a few bars of dusky or bluish near posterior margin. Anal 

 blackish, with purple border and well defined dusky orange bars 5 or 6 across 

 terminal third of fin. Caudal olivaceous, purplish in fork, base white and 

 edges of lobes black. Pectoral dusky lemon j^ellow, upper rays yellow 

 terminally. Ventral blackish. Caudal spine with black socket. 



8716. Batan Island. June 5, 1909. Length 250 mm. 



8955. Between Paron and Jesus Points, Luzon. June 21, 1909. Length 273 mm. 



8369. Malapascua Island. March 16, 1909. Length 405 mm. Body purplish 

 brown, fading greenish anteriorly above, raw umber medially and nearly 

 orange posteriorly, with undulating slate blue stripes on scale rows. Side of 

 head and breast nearly covered bj' bright purple stripes, interspaces somewhat 

 olivaceous. Large purplisli shade in horse-shoe from just above corner of 

 gill opening downward to midway between point of opercle and pectoral base; 

 enclosed area very dark olive, becomes black after deatli. Interorbital purple 

 slate. Opercular flap black. Dorsals and anals broadly margined purple, 

 without cross bars except terminally 2 or 3 obscurely; body of fins darker 

 than side of trunk, purplish band at dorsal and anal bases. Caudal olivaceous, 

 probably whitish in life, color clearly contrasted from caudal peduncle at base 

 of fin; margin witliin fork purple. Pectoral rays purple basally, olive yellow 

 terminally, membranes more or less liyaline. Ventral blackish olive, front 

 and edge purplish. Caudal spine with black socket. 



6261, 6262. Medio Island, Galera Bay, Mindanao. June 9, 1908. Length 325 

 to 384 mm. 



8197. Port Busin, Burias Island. March 8, 1909. Length 233 mm. 



A1234. Gomomo Island. December 3, 1909. Length 383 mm. 



A1081, A1082. Maitara Island. November 26, 1909. Length 290 to 393 mm. 



A998, A999, A1035. Buka Buka Island, Celebes. November 20, 1909. Length 

 285 to 293 mm. 



HEPATUS NIGRICANS (Linnaeus) 



Chaetodon nigricans Linnaeus, Syst. Nat., ed. 10, vol. 1, 1758, p. 274. Red 



Sea; S3'st. Nat., ed. 12, vol. 1, 1766, p. 462. — Bloch, Naturg. Ausl. 



Fische, vol. 3, 1787, p. 82 (not plate, part). — Gmelin, Syst. Nat. 

 Linn., vol. 1, pt. 3, 1789, p. 1245 (Red Sea). 



