THE FISHES OF SAMOA. "* 857 



edged with gray; then a broader black band edged with gray: then fuur brown bands, yellow between, 

 then the caudal peduncle black, the pale stripe before it u<iiroH ; tail yellow, grayish behind, thus 

 seven dark bands; dorsal and anal <!usky deep yellow, the dorr^al with some spots l)ehind; ventral 

 golden. 



ACANTHUEUS Forskal. 



( Monoceros, Naso, and Naseus of authors. ) 



1212. Acanthurus unicornis iForak^l). Ili'ilia segi; Ume; Vmelei. Hawaii; Samoa; Aneiteuin; 



Guam; Tahiti; Waigiu; New Guinea; Raiatea (Seale); East Indies; Japan. 



This species, widely diffused through the tropical Pacific and varying excessively at various stages 

 of growth, is common about Hawaii. At Saftioa we found it rather scarce, but four specimens being 

 obtained. The caudal spines are bluish on a pale ground, while those of Acanthurus lituralns are orange. 



Life colors of a specimen from Apia, dark olive, brownish below, paler on tail; spines clear blue; 

 dorsal light brown, with light bluish spots and a dark edge; caudal dusky, paler behind; anal clear 

 orange-brown, with a row of pale blue spots at base, then two pale bluish stripes and a whitish edge; 

 pectoral and ventral mottled orange-gray. 



Another specimen from Apia was grayish black, the spines dark blue; caudal peduncle brown, 

 paler; dorsal light orange, with oblique bluish streaks; caudal gray; anal light orange, with horizontal 

 bluish streaks; head, pectoral and ventral gray. 



1213. Acanthurus brevirostris (Cuvier & Valenciennes). Hawaii; Tahiti; Kingsmill I., New 



Guinea; He de France. 

 .Va5fii.s hrenrostiis Cuvier & Valenciennes, Hist. Nat. Poiss., x, 277, pi. 291, 1835, East Indies, He de France, New 



Guinea. Gunther, Cat., ni,349. 1861. Gunther, Fische der Siidsee. 121. laf. 79, fig. a. 1875, Kingsmill I., Tahiti. 

 Acanthurus hrei'irostris Jenkins, Bull. U. S. Fish Comm., x.xii, 1902 (1903). 481. Honolulu. Snyder, Bull. l\ S. Fish 



Comm., XXII, 1902 (1904), 534, Honolulu. 

 This species, rather common about Hawaii, was not found in Samoa. 



1214. Acanthurus incipiens Jenkins. Hawaii; Samoa. 



Acnntliurus incipiens Jenkins, Bull. U. S. Fish Comm., xxil, 1902 (1903), l.so, Honolulu. 



Two specimens were seen at Samoa, similar in form to Jenkins's type. One of these is plain 

 blackish, the other covered with blue spots. The caudal fin in both is blackish. This fin is largely 

 yellow in Acanthurus brevirostris, otherwi.se we might regard Acanthurus incijiiens as the young of that 

 species. It is apparently an immature form. 



Life colors of one specimen from Apia, black, with a brownish shade; upper parts with small 

 rounded spots of deep violet-blue; belly paler, slaty; lips blue; a blue streak below eye; dorsal dark 

 l)rown, slightly bluish on spines, dusky on edge; ventral dark brown, paler behinil, the edge blackish; 

 anal dark brown with two dark blue streaks and a dusky edge; ventral and pectoral dark brown; 

 caudal black with a faint trace of a pale edge. No trace of horn or of spines on tail. Length, 6 inches. 



1215. Acanthurus annulatus (Quoy & Gaimard). Tonga; Palau; Aneiteum; Fiji; Guam. 

 Priiiilnn annulalus tjuny & liaimani, Voy, Uranie. 377, 1824, Polynesia, young. Suale, Bishop Mu^iMnn, 1901, 113, 



Naaeii.' . ' ■■ ' uvi. i ,v \ ., -m. ir,,i„ . Hist. Nat. Poiss., x, 280,1835, Tonga; not Acnnlhurii.t marj/innl us Kittlitz. 



(.iuii' ' ■ ■ 1 ■■■•.,■■- ^^i i • : ;. I ■ I ■ ■ I, Aneiteum. 

 Mono,,>.. -,. i;;^ ,..;, \i ,-. .Ill 1901, 114, Guam. 



Priudnu M '.,, I iiM. I ,v \ ,i;. ih i.Miih - iiist. Nat. Poiss., .\, 302, pi. 294, 1835, Guam, young. 



1216. Acanthurus tuberosus Lac^pede. Guam; Aneiteum; New (niinea; Mauritii 

 .V((,-o tr.berosus Lac^pede, Hi.st. Nat. Poiss., in, 111. 1802, He de Frajice. 



iV'a^tas tuberosus, Giinther. Fische der Siidsee, 123, Aneiteum, Ceylon, Zanzibar, Mauritius. 



Acmdhurus nasus Shaw, Gen. Zool., v, 376, pi. 51, 1803, He de France. 



Naseus carolinamma Quoy & Gaimard, Voy. Uranie, 3V5, pi. 63, fig. 1, 1824, Guam. 



Jfaseus tuber Cuvier & Valenciennes, Hist. Nat. Pois.s., x. 290, 1835. He de France. 



Naseus tonganus Quoy & Gaimard, in Cuvier.it Valenciennes, Hist. Nat. Poiss., x, 292, 1S35, Tonga; specimen 



Immaculate. 

 NaseiLS punctulatus Steindachner, 1871. 

 This species we have not seen. It is probably rare in Polynesia. 



oThis species, marked by green blotches, is imperfectly described, and has not been recognized by recent authors. It 

 is perhaps nearest Acanthurus tuberosus. 



