FISHES OF THE PHILIPPINE AND ADJACENT SEAS 249 



of caudal peduncle 2}/^ to 2J^ in head; pectoral S}4 to 3% in com- 

 bined head and body; ventral 1}/q to 1}/^ in head; caudal spine 7. 



Olivaceous-brown generally, scarcely paler on breast and belly. 

 Obscure pale or light gray-brown vertical band from occiput to pec- 

 toral origin. Another, slightly wider and parallel from front of spinous 

 dorsal base down to vent, broadening little below. Behind this trunk, 

 tail, dorsal, and anal closely spotted with whitish spots, all greatly 

 smaller than pupil and close-set. Dorsals and anals with dusky- 

 brov/n to blackish ground color, and spot^ sparse on spinous dorsal. 

 Caudal dull brown, dusky terminally. Paired fins uniform brownish. 

 Caudal spine and groove brownish. Iris light bi'own. 



Mauritius, Philippines, Melanesia, Micronesia, Polynesia, Hawaii. 

 Known by its deep orbicular form and spotted coloration, the small 

 white spots only on the posterior half of the body. 



8871. Buang Bay, Talajit Island. March 15, 1909. Length 295 mm. 



52321 U.S.N. M. Apia, Samoa. Bureau of Fisheries. Length 126 to 178 mm. 



Four examples. 

 61699 U.S.N.M. Mauritius. Col. Nicholas Pike. Length 232 mm. 

 66052 U.S.N.M. Tari Tari, Gilbert Islands. Albatross collection. Length 175 



to 228 mm. Two examples. 



HEPATUS TRIOSTEGUS (Linnaeus) 



Chaetodon triostegiis Linnaeus, Syst. Nat., ed. 10, vol. 1, 1758, p. 274. East 

 Indies. — Broussonet, Ichthyologia, London, 1782, no pagination, plate 

 (East Indies, Pacific Ocean near Tahiti and Hawaii). — Gmelin, Syst. Nat. 

 Linn., vol. 1, pt. 3, 1789, p. 1246 (Indian Ocean). — Walbaum, Arted. Pise, 

 vol. 3, 1792, p. 436 (on Linnaeus). 



Acanthurus triostegiis Schneider, Syst. Iclith Bloch, 1801, p. 215 (Indian and 

 Pacific Oceans). — Valenciennes, Hist. Nat. Poiss., vol. 10, 1835, p. 197 

 (Hawaii, Mauritius, Seychelles, Tahiti, Mariannes, New Zealand, Oualan, 

 Society Islands). — Jenyns, Zool. Voy. Beagle, Fish., vol. 4, 1842, p. 75 

 (Cocos Island).— Bleeker, Nat. Tijds. Nederland. Indie, vol. 3, 1852, p. 

 237 (Wahai, Ceram); vol. 5, 1853, p. 320 (Amboina), p. 544 (Mesuwen 

 Bay, Java); vol. 6, 1854, p. (90) 102 (Banda Neira, Batavia, Padang, Cauer, 

 Priaman), p. 517 (Oelakan), p. 518 (Cocos Island); vol. 7, 1854, p. 38 (cop- 

 ied), p. 228 (Manado), p. 313 (Djinglsulon); vol. 8, 1855, p. 296 (Ternate), 

 p. 445 (Cocos Island); vol. 10, 1856, p. 360 (Ternate); vol. 11, 1856, p. 81 

 (Malang, Java), p. 385 (Kajeli, Burn); vol. 13, 1857, p. 372 (Sangi Islands), 

 p. 478 (Karangbollong), p. 479 (Prigi); vol. 14, 1857, p. 245 (Prigi); voL 

 15, 1858, p. 159 (Prigi), p. 200 (Coram); vol. 17, 1858-59, p. 130 (Atupoe- 

 poe, Timor); vol. 19, 1859, p. 331 (Patjitan), p. 333 (Karangbollong); vol. 

 20, 1859-60, p. 203 (Karangbollong); vol. 22, 1860, p. 89 (Prigi), p. 113 

 (Buru), p. 247 (Batoesendi, Bawean); Verh. Batav. Genoot. (Nal. Ichth. 

 Bengal), vol. 25, 1853, p. 48; Act. Soc. Sci. Ind. N6erland., vol. 1, No. 3, 



1856, p. 4 (Manado); vol. 1, No. 5, 1856, p. 6 (Amboina); vol. 2, No. 7, 



1857, p. 5 (Amboina); vol. 3, No. 4, 1857-58, p. 3 (Manado and Tama- 

 wanko); vol. 3, No. 9, 1857-58, p. 4 (Trussan), p. 5 (Priaman); vol. 5, No. 

 8, 1858-59, p. 2 (Tobariri, Celebes); vol. 8 (Sumatra), 1859, p. 10 (Pria- 

 man). — GtJNTHER, Cat. Fish. Brit. Mus., vol. 3, 1861, p. 327 (Amboina, 

 Celebes, Malay Peninsula, Malay Archipelago, Aneiteum, type of Teuthis 

 australis). — Bleeker, Verslag. en Mededeel. Akad. Wet. Amsterdam, vol. 



