166 BULLETIN 180, UNITED STATES NATIONAL MUSEUM 



73, figure A, appears to be a pale color phase of this species, and 

 on these pale specimens the wavy blue lines are most prominent. 



115150, Canton Island, reef on ocean side, April 25-28, 1939, 2 specimens. 



115145, Swains Island reef. May 3-9, 1939, 11 specimens. 

 115149, Enderbury Island reef, May 15-19, 1939, 15 specimens. 



115144, Tutulla Island, reef at Pagai, June 4, 1939, L. P. Schultz and 

 Frank Taiga, 57 specimens. 



115143, Tutuila Island, reef at Alofau, June 3, 1939, 13 specimens. 

 115142, Tutuila Island, reef at entrance Pago Pago Bay, June 2, 1939, 10 

 specimens. 



115146, Rose Island, reef, June 11-14, 1939, 84 .specimens. 



115145, Hull Island, reef, July 12-15, 1939, 6 specimens. 



115147, Hull Island, channel. July 7-17, 1939, 14 specimens. 

 52340, Apia, Samoa, Jordan and Kellogg, 5 specimens. 

 52456, Apia, Samoa, Jordan and Kellogg, 2 specimens. 

 88070, Apia, Samoa, 1 specimen. 



ACANTHURUS OLIVACEUS Bloch 



Acanthurus nigricans var. olivacetis Bloch, i7i Schneider, Systema ichthyolo- 

 giae . . ., pp. XXXVIII, 214, 1801. 



115168, Rose Island, lagoon, June 12 to 20, 1939, 1 specimen. 

 52521, Apia, Samoa, Jordan and Kellogg, 2 specimens. 



ACANTHURUS NIGRICANS (Linnaeus) 



Chaetodon nigricans Linnaeus, Systema naturae, ed. 10, p. 274, 1758. 



1115167, Canton Island, lagoon, April 23 to May 12, 1939, 1 specimen. 

 52496, Samoa, Jordan and Kellogg, 3 specimens. 



ACANTHURUS FULIGINOSUS (Lesson) 



Acanthurus fuUginosus Lesson, Voyage autoiu' du moude . . . Coquille, Zool., 

 vol. 2, pt. 1, p. 149, pi. 27, fig. 2, 1830. 



115161, Canton Island, lagoon, May 25-26, 1939, 4 specimens, the largest one 

 425 mm. 

 52495, Apia, Samoa, Jordan and Kellogg, 6 specimens. 

 83274, Samoa, Wilkes Exploring Expedition, 1 specimen. 

 51759, type of HcpaUis aquilinus Jordan and Seale, from Samoa. 



Genus ZEBRASOMA Swainson 



Zei7-asoma Swainson, The natural history and classification of fishes, amphibians 

 and reptiles, or monocardian animals, vol. 2, p. 256, 1839. (Type, Acan- 

 thurus velifer Bloch.) 



ZEBRASOMA VELIFERUM (Bloch) 



Acanthurus velifer Bi.ocn, Naturgeschichte dor ansliindischen Fische, pt. 9, p. 

 106, pi. 427, fig. 1, 1795. 



115172, Canton Island, lagoon. May 23-25, 1939, 4 specimens. 

 52350, Apia, Samoa, Jordan and Kellogg, 2 specimens. 



