FISHES OF THE PHOENIX AND SAMOAN ISLANDS 167 



ZEBRASOMA FLAVESCENS (Bennett) 



Acanthurus flavcscens Bennett, Zool. Jcurn., vol. 4, p. 40, 1828. 



I refer to Z. flavescens the specimens in the National Museum 

 previously identified as A. rhomheum, by Jordan and Seale and by 

 Fowler. 



115180, Tutnilu Island, reef at entrance Pago Pago Bay, June 2, 1939, 1 

 specimen. 



52402, Apia, Samoa, Jordan and Kellogg, 2 specimens. 

 52507, Apia, Samoa, Jordan and Kellogg, 3 siDecimens. 



Genus NASO Lacepede 



l^aso Lacepede, Histoire Naturelle des Poissons, vol. 3, p. 105, 1802. (Type, 

 Chaetodon fronticornis Linnaeus.) 



NASO LITURATUS (Bloch) 



Acanthurus litiiratus Bloch, in Schneider, Systema ichthyologiae . . ., p. 216, 

 1801. 



115169, Tutulla Island, reef at Pagai, June 4, 1939, L. P. Scbultz and Frank 

 Taiga, 7 specimens. 



115170, Tutuila Island, reef at entrance Pago Pago Bay, June 2, 1939, 3 

 specimens. 



115171, Rose Island reef, June 11-14, 1939, 6 specimens. 

 52450, Apia, Samoa, Jordan and Kellogg, 2 specimens. 



NASO BREVIROSTRIS (Valenciennes) 



Nafseus hrevirostris Valknciennes, in. Cuvier and Valenciennes, Histoire Natu- 

 relle dos poissons, vol. 10, p. 277, pi. 291, 1835. 



52520, Apia, Samoa, Jordan and Kellogg, 1 specimen. 



This specimen was reported upon by Jordan and Seale (1906) as 

 Acanthurus incijnens. It is doubtful whether TV. annulatus has been 

 taken from this area. 



NASO UNICORNIS (Forsk&l) 

 Chaetodon unicornis FoeskAl. De.?criptiones animalium . . ., pp. xii, 63, 1775. 



115177, Rose Island, reef. June 11-14, 1939, 1 specimen. 

 52343, Apia, Samoa, Jordan and Kellogg, 2 specimens. 

 109565, Apia, Samoa, Jordan and Kellogg, 2 specimens. 



Color in life, from note on the specimen from Rose Island reef: 

 Head pale green, body pale olive, with dark gray spots in upper half 

 of sides arranged in about two rows, three just behind operculum; 

 a little below dorsal fin is an irregular row of dai-k olive-colored 

 blotches; caudal peduncle darker olive; caudal fin with upper and 

 lower rays dark olive, rest of fin pale green, except the whitish pos- 

 terior margin; margin of dorsal with dark margin, and a row of 

 blackish spots along its middle area the center of fin posteriorly red- 

 dish; anal fin dark red with a blackish-blue margin; a silvery area 

 under head on side of breast. 



424599 — 42 12 



