358 BULLETIN OF THE BUREAU OF FISHERIES. 



1217. Acanthurus metoposophron (Jenkins). Hawaii. 



Callicanthus metoposophron, Jenkins, Bull. U. S. Fish Comm., XXII, 1902 (1903), 481, fig. 31, Honolulu. 



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



Naseus vlamingi Cuvier & Valenciennes, Hist. Nat. Poiss., x, 293, 1835, Moluccas. Gunther, Fische der Sudsee, 

 123, Ebon, Marshall Is., Aneiteum, Ceram. Fowler, Proe. Ac. Nat. Sci. Phila., 1899, 193, South Seas. 



1219. Acanthurus lituratus (Forster). lli'ilia; Umelei; Time. Tahiti; Hawaii; Samoa; Johnston I.; 



Guam; New Guinea; East Indies. 



Acanthurus lituratus Forster, in Bloch & Schneider, Syst. Ich. 1801, 218, Tahiti. 



Harpurus lituratus Forster, Descr. Anim., 218, 3844, Tahiti. 



Naseus lituratus, Gunther, Fische der Sudsee, 124 (with plate representing "garretti"), Sandwich Is., Tahiti, 



Red Sea. 

 Monoceros lituratus Seale, Bishop Museum 1901, 112, Guam. 

 Aspisurus elegans Ruppell, Atlas, Fische, 61, tab. xvi, fig. 2, 1828, Red Sea. 

 Prionunis eoume Lesson, Voy. Coquille, II, 151, 1830, Tahiti. 

 Naseus lituratus Smith & Swain, Proc. U. S. Nat. Mus. 1882, 139, Johnston I. Steindachner, Sitz. Ak. Wiss. Wien 



1900, 495, Honolulu. 

 t Monoeerus garretti Seale, 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 garretti. The only permanent difference seems to be this — in 

 the true lituratus there is a line of clear blue along the base of the dorsal, and in garretti, old and 

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

 Acanthurus garretti is a valid species. 



Life colors were noted in various specimens as follows: 



(1) Specimen from Apia called ume. 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 except 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'ilia. 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 brown, a light yellow-brown streak from eye. 



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



Monoceros garretti Seale, Bishop Museum, 1901, 112, Guam. 



This species, if such it be, is distinguished from Acanthurus lituratus 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 foundat Hawaii and Samoa with Acanthurus lituratus. It is represented in Giinther's 

 plate of Naseus lituratus in Fische der Sudsee. It is probably a color variation of Acanthurus lituratus — 

 a view not shared by the junior author, however. 



AXINURTJS Cuvier & Valenciennes. 



1221. Axinurus thynnoides Cuvier & Valenciennes. New Guinea; East Indies. 



