194 



U.S. NATIONAL MUSEUM BULLETIN 202 



Vol 2 



Head 



Broad pale bar behind 

 head. 



Dorsal base of pectoral 

 fin. 



Inner ventral part of pec- 

 toral fin base. 



Dorsal edge of pectoral 

 fin basally. 



Dorsal fin 



Anal fin. 



duperry lueasanum 



Plain dark brown Plain dark brown. 



Present, sometimes in- Present, sometimes indis- 



distinct. tinct. 



Black spot present Black spot present. 



Brownish Pale. 



Pale Blackish line. 



Plain dark brown, distal 

 edge same color as fin. 



Distal edge of caudal fin 



of adult. 

 Tips of outer rays of 



caudal fin. 



Plain dark brown, distal 



edge of same color as 



fin. 

 Brown Whitish. 



Usually brownish and 

 darker than body, distal 

 edge white, especially 

 along soft dorsal fin. 



Darker than body, usually 

 brownish, distal edge 

 white. 



Same color as rest of fin. 



Brownish streak with 

 whitish line dorsally and 

 ventrally. 



Thus far all the specimens of dupemj examined by us were from the 

 Hawaiian Islands or from Johnston Island. We cast doubt on the 

 accuracy of identification of specimens from other localities such 

 as the Phihppines (Fowler and Bean, U. S. Nat. Mus. Bull. 100, 

 vol. 7, p. 392, 1928). Records for the occurrence of duperry in the 

 American tropical Pacific are for lueasanum. 



THALASSOMA QDINQUEVITTATA (Lay and Bennett) 



Plate 99,A 



Scarus quinquevittatua Lay and Bennett, Fishes, in Zoology of Captain Beechey's 

 voyage . . ., p. 66, pi. 19, fig. 3, 1839 (type locality, Loo Choo Islands). 



Julis guntheri Bleeker, Verslag. Akad. 



(Manado); Atlas ichthyologique . 



(Celebes and Sangi). 

 Thalassoma albolineum Nichols, Amer. 



(type locality, Bali). 

 Halichoeres leparensis Seale, Occ. Pap. 



(type locality, Guam). 



Wet. Amsterdam, vol. 

 , ., vol. 1, p. 94, pi. 



13, p. 279, 1862 

 34, fig. 1, 1862 



Mus. Nov. No. 1154, p. 1, fig. 6, 1941 

 Bishop Mus., vol. 1, no. 3, p. 89, 1901 



SPECIMENS STUDIED 



Bikini Atoll: 31 stations, 653 specimens, 13 to 125 mm. in standard length. 



Eniwetok Atoll: 8 stations, 124 specimens, 13 to 105 mm. 



Rongerik Atoll: 5 stations, 139 specimens, 21 to 95 mm. 



Rongelap Atoll: 9 stations, 156 specimens, 20 to 106 mm, 



Kwajalein Atoll: 2 stations, 52 specimens, 19 to 108 mm. 



Likiep Atoll; 1 lot, Univ. Washington, 1 specimen, 60 mm. 



Guam: 1 lot, 7 specimens, 14 to 30 mm. 



Saipan; 1 lot, 4 specimens, 61 to 94 mm. 



