FISHES OF THE PHHiIPPINE AND ADJACENT SEAS 237 



A1583. Soo Wail, eastern Formosa. January 29, 1910. Length 250. mm. 



30543 U.S.N. M. New Guinea. Australian Museum. Length 223 mm. 



52496 U.S.N.M. Apia, Samoa. Bureau of Fisheries. Length 117 to 260 'mm. 



Three examples. 

 66054 U.S.N.M. Suva, Fiji. Albatross collection. Length 130 mm. 



HEPATUS NIGROFUSCUS (Forsk&l) 



Chaetodon nigrofuscus Forskal, Descript. Animal, 1775, pp. xiii, 64. 



Djedda, Red Sea.— Gmelin, Syst. Nat. Linn., vol. 1, pt. 3, 1789, p. 1268 



(on FokskIl). — Walbaum, Arted. Pise, vol. 3, 1792, p. 438 (on Furskal). 



Acmithurus nigro-fuscus Valenciennes, Hist. Nat. Foiss., vol. 10, 1835, p. 



214 (Bourbon Island, Red Sea). — GtJNTHER, Cat. Fish. Brit. Mus., vol. 



3, 1861, p. 331 (Ceylon, Amboina). — Guichenot, Notes I. Reunion, vol. 



2, 1862, p. 27. — Meyer, An. Soc. Espanola, Hist. Nat. Madrid, vol. 14, 



1885, p. 24 (Manado, Celebes; Siao, Sangi). — Boulenger, Proc. Zool. 



Soc. London, 1887, p. 660 (Muscat). — Sauvage, Hist. Nat. Madagascar, 



Poiss., 1891, p. 338. — Zugmayer, Abh. Bayer. Akad. Wiss., Math.-Phys. 



Kl., vol. 26, abth. 6, 1913, p. 12 (Oman). 



Acanthurus {Rhomhotides) nigrofuscus Klunzinger, Fische Roth. Meer., 



1884, p. 84. 

 Teuthis nigrofuscus Ogilby, Proc. Roy. Soc. Queensland, vol. 21, 1908, p. 



23 (Dunk Island) . 

 Acanthurus rasi. Valenciennes, Hist. Nat. Poiss., vol. 10, 1835, p. 203. 

 Pondichery. — Bleeker, Verh. Bat. Genoot. (Nal. Ichth. Bengal), vol. 

 25, 1853, p. 48. 

 Acanthurus niger (Ehrenberg) Ruppell, Atlas Reise Nordl. Afrika, Fische, 

 1828, p. 58. Red Sea (nomen nudum). — Valenciennes, Hist. Nat. Poiss., 

 voL 10, 1835, p. 174 (name in text). 

 Acanthurus rubropunctatus Ruppell, Atlas Reise Nordl. Afrika, Fische, 1828, 

 p. 59, pi. 15, fig. 1. Northern part of Red Sea. — GtJNXHER, Cat. Fish. 

 Brit. Mus., vol. 3, 1861, p. 333 (copied). — Klunzinger, Verh. zool. bot. 

 Ges. Wien, vol. 21, 1871, p. 508 (Red Sea). 

 Acanthurus matnides (not Valenciennes) Klunzinger, Verh. zool. bot. 

 Ges. Wien, vol. 21, 1871, p. 507 ('t5'pes of Acanthurus nigrofuscus Valen- 

 ciennes). 

 Acanthurus giintheri (not Jenkins) Weber, Siboga Exp., vol. 57, Fischei 



1913, p. 317. Amboina. (On GIjnther 1861.) 

 Hepatus weberi Ahl, Mitt. Zool. Mus. Berhn, vol. 11, 1924, p. 37 (on 

 Weber 1913). 

 Depth 14^ to 2; head 3H to d^, v/idth 1% to 2^. Snout l}yi to 

 13^; eye 3% to 4^, 2}4 to 3}/2 in snout, 13^ to 1% in interorbital ; 

 teeth 18 to 20 in each jaw; maxillary 3% to 434 in head; interorbital 

 3 to 33^, convex. Gill rakers 8 + 17, short, feeble points. 



Scales with minute circuli; apical denticles 18 to 20, with 4 to 6 

 series of transverse basal elements. 



D. IX, 28, ninth spine 13^ to 1% in head, fourteenth ra}^ 134 to 

 1}/^; A. Ill, 25 to 27, third spine 2 to 2^, first ray 1^ to 1^; caudal 

 deeply lunate, with long, slender points, 2}4 to 2% in combined head 

 and body; least depth of caudal peduncle 2% to 2^ in head; pectoral 

 1; ventral 13^ to 1^4; caudal spme 33^ to 3^^. 



