358 BULLETIN OF THE BUREAU OF FISHEKIES. 



1217. Acanthurus metoposophron (Jenkins). Hawaii. 



CdUiCdnthus meioposophmn, Jenkins. Bull. U. S. Fish Comm., x.icii, 1S02 (1903), 4.H1, tig. 31. Honolulu. 



1218. Acanthurus vlamingi (Cuvier & Valenciennes). Marshall Is. ; Aneiteum; East Indies. 



1219. Acantliuruslituratus (Forster). lli'iliti; Umelei; Ume. Tahiti; Hawaii; Samoa; Johnf^ton I. ; 



Guam; New Guinea; East Indies. 



Acanthurus lUuratus Forster, in Bloch & Sebneider, Syst. Ich. 1801, 218, Tahiti. 



Harpurus Uturaius Forster. Descr. Anim.. 218. 1844, Tahiti. 



iVoseiis lUuratus, GUnther, Fische der Siidsee, 124 (with plate representing "garretti"). Sandwich Is.. Tahiti. 



Red Sea. 

 Monoccros Uturaius Seale, Bishop Museum 1901, 112. Guam. 

 Aspisurus elegans Riippell, Atlas, Fische, 61, tab. xvi. flg. 2, 182S. Red Sea. 

 Prionurus ciiume Lesson, Voy. Coquille, ii, 151. 1830. Tahiti. 

 Xaseiis Uturaius Smith & Swain. Proc. U. S. Nat. Mus. 1882. 139, Johnston I. .Steindachner. Sitz. Ak. Wiss. Wi.-n 



1900, 495, Honolulu. 

 1 Monocerus garretti Se&\e, Bishop Museum 1901, 112, Guam. 



This species is common at Samoa, as about Hawaii. In both places, and almost equally abundant, 

 occurs the form described as Monoceros garrelli. The only permanent difference seems to be this — in 

 the true liluratus there is a line of clear blue along the base of the dorsal, and in rjai-relli, old and 

 young, this is wanting. As we find no other difference, the senior author is very doubtful as to whether 

 Acanthurus garrelli is a valid species. 



Life colors were noted in various specimens as follows: 



(1) Specimen from Apia called wne. 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. 



(2) From Apia (young of preceding?). Dusky olive; belly yellowish brown; lips yellowish brown; 

 a blue streak along base of dorsal, which is black e.xcept for a long white stripe; caudal dark olive, 

 edged with greenish, then white; anal dull orange, edged with black; two anal spines dull orange; 

 ventral dull orange. 



(3) Specimen called umelei, ume, also from Apia. 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. 



(4) Specimen from Apia called umelei. Dusky grayish, yellowish above eye; a bluish streak 

 along base of dorsal; caudal whitish behind; dorsal and anal deep maroon red and dusky. 



(5) Specimen called ili'Hia. Black, brownish tinged; dorsal black, a pale blue streak at base, the 

 edge gray with black margin and a row of bluish spots; spines orange; caudal black, with broad 

 white edge; anal orange, black and white on margin, olive green at base; ventral olive orange; pectoral 

 black; lips lirown, a light yellow-brow^n streak from eye. 



1220. Acantliurus garretti (Seale). Guam; Hawaii; Samoa. 

 Monoceros garretti Se&le, Bishop Museum, 1901, 112, Guam. 



This species, if such it be, is distinguished from Acanthurus Uturaius by the absence of a blue line 

 along the base of the dorsal and by the yellow spots on caudal peduncle separated by sharply defined 

 black area. It is found at Hawaii and Samoa with Acanthurus Uturaius. It is represented in Giinther's 

 plate of Xa.^eus Uturaius in Fische der Siidsee. It is probably a color variation of Acanthurus llturatm — 

 a view not shared by the junior author, however. 



AXINTJKUS Cuvier & Valenciennes. 



1221. Axinurus thynnoides Guvier et Valt'ucieiines. 2sew Guinea; East Indies. 



