FISHES OF THE PHH.IPPINE AND ADJACENT SEAS 111 



p. 32 (Zanzibar). — Gunther, Journ. Mus. Godeffroy, vol. 2-3, Heft 5-6, 

 1874, p. 37 (Bonham Island, Tahiti, Samoa). — Day, Fishes of India, pt. 

 1, 1875, p. 107 (Ceylon).— Peters, Monatsber. Akad. Wiss. Berlin, 1876, 

 p. 437 (Mauritius). — Day, Fauna Brit. India, vol. 2, 1889, p. 7. — Elera, 

 Cat. Fauna Filipin., vol. 1, 1895, p. 485 (Luzon, Manila, Cavite). — 

 EvERMANN and Seale, Bull. Bur. Fish., vol. 26, 1906 (1907), p. 97 

 (Bacon).— Ahl, Arch. Naturg., vol. 89, abth. A, Heft 5, 1923, p. 140 

 (type).— Fowler, Bishop Mus. Bull., No. 22, 1925, p. 12 (Guam), p. 27 

 (Hawaii), p. 34 (Samoa). — Fowler and Ball, Bishop Mus. Bull., No. 26, 

 1925 (1926), p. 17 (Johnston Island). — Herre and Montalban, Philip- 

 pine Journ. Sci., vol. 34, No. 1, Sept., 1927, p. 61, pi. 11, fig. 1 (Santo 

 Domingo de Basco, Mariveles, Batangas, Tagapula, New Washington, 

 Simara, Quiminatin, Jolo, Sitanki). 



Chetodon unimaculatus Bonnaterre, Tabl. Ichth., 1788, p. 88, pi. 94, fig. 

 387 (Japan). 



Citharoedus unimaculatus Kaup, Arch. Naturg., vol. 26, abth. 1, 1860, p. 145. 



Tetragonoptrus (Lepidochaetodon) unimaculatus Bleeker, Atlas Ichth. Ind. 

 N^erland., vol. 9, 1877, p. 45, pi. (13) 375, fig. 5 (Java, Solor, Timor, 

 Ternate, Burn, Amboina, Ceram, Banda). 



Chaetodon ocellalus (Parkinson) Cuvier, Hist. Nat. Poiss., vol. 7, 1831, p. 

 75. Tahiti (name in text). 



Chaetodon cordiformis Thiolliere, Fauna Woodlark, 1857, p. 165. Wood- 

 lark Island. 



Chaetodon sphenospilus Jenkins, Bull. Bur. Fish., vol. 19, 1899 (1901), p. 

 395, fig. 8. Honolulu. 



Chaetodon^nimaculatus subsp. interruptus Ahl, Arch. Naturg., vol. 89, abth. 

 A, Heft 5, 1923, p. 142. Mauritius. 



Depth 1% to 1}4; head 3 to 33/3, width lf4 to 2. Snout 2^ to 

 3 in head from snout tip; eye 2)/^ to 4:}/^, httle greater than snout in 

 young to 1 1^ with age, greater than interorbital in young to 1 % with 

 age; maxillary 3^ to % in snout, 3% to 3^ in head; interorbital 

 2% to 3^2, broadly convex. Gill rakers 5 + 12, short points, }4 of gi^l 

 filaments, which 1^^ in eye. 



Scales 36 to 38 between gill opening and caudal base; tubes 32 to 

 35 in lateral Ime; 7 to 9 scales above lateral line, 24 or 25 below. 

 Scales with 14 or 15 basal radiating striae; apical denticles 63 to 156, 

 with 3 to 22 transverse series of basal elements; circuli fine. 



D. XIII, 22, 1 or 23, i, last spme 1% to 2 in total head length, fifth 

 ray 1% to 1}4; A. Ill, 19, i or 20, i, third spine 1% to 13^, fifth ray 

 1}4 to 1%; least depth of caudal peduncle 3 to 33^8; caudal 1% to 

 1}4, hind edge slightly convex; pectoral 1 to 13^^; ventral 13^ to 1^^. 



Light brown generally. Broad black band from predorsal and 

 supraoccipital to eye and below on side of breast meeting its fellow. 

 On back medianly black rounded blotch, larger than eye with age or 

 extends over 8 scales. Posterior borders of soft dorsal and anal 

 black, edges very narrowly white. Fins otherwise all uniformlj'- pale 

 brown like body. 



Zanzibar, Madagascar, Ceylon, East Indies, Polynesia, Hawaii. In 

 young examples the black blotch on the back is smaller than in the 

 adults and with a broad white border. 



