FISHES OF THE PHOENIX AJSD SAMOAN ISLANDS 31 



UROPTERYGIUS FIJIENSIS Fowler and Bean 



Figure 3, f 



Vropt cry gins fijirnsis Fowleb and Bean, Proc. U. S. Nat. ]Mus., vol. 63, art. 19, 

 p. 9, 1923. 



Not taken by me and no specimen from the Phoenix or Samoan 

 Islands, but included here for comparative purposes. Type, only 

 knoAvn specimen, now measures 605 mm. when straightened out, instead 

 of 582 nmi. as recorded by Fowler. 



UROPTERYGIUS XANTHOPTERUS Bleeker 



Figure 3, i 



Uropterygius xanthopterus Bleekee, Nat. Tijdschr. Ned. Indie, vol. 19, p. 3o(), 

 1859. 



115912, Enderbury Island, reef. May 15-19, 1939, 5 specimens 108 to 200 mm. 



115913, Canton Island, lagoon, April 23 to May 12, 1939, 3 specimens, 280 to 

 855 mm. 



115911, Swains Island, reef, May 3 9, 1939, 14 specimens, 74 to 210 mm. 



115916, Rose Island, reef, June 11-14, 1939, 27 specimens, 88-225 mm. 



115914, Hull Island, reef, July 12-15, 1939, 3 specimens, 98-171 mm. 

 115015, Canton Island, lagoon, May 25-20, 1939, 1 specimen, 295 mm. 



115917, Canton Island, reef of widest shallow channel. May 13, 1939, 3 speci- 

 mens, 181-218 mm. 



Although authors have referred this species to the synonymy of U. 

 mannoratus, my extensive material indicates that the two species are 

 certainly distinct. U. xanthopterus has longer caudal fin rays and is 

 a slenderer eel ; the depth is about 26 to 30 instead of 18 to 23 in the 

 total length. The caudal fin rays of U. marmoratus are at all lengths 

 very short (usually a dissection is required to measure them), about 

 23 to 27 times in the head. The color pattern is always mottled on 

 marmoratus^ even in those 100 mm. in length, and there are no white 

 spots on head or body. 



Bleeker's Atlas figures TJ. xanthopterus on plate 164, figure 4, and 

 that is no doubt the species of which I have numerous specimens, but 

 his figure does not show the pale spots on the head or the body, perhaps 

 because these were obscure at the length of his specimen, 198 mm. 



UROPTERYGIUS CONCOLOR Ruppell 



Figure 3, g 



Uropterygius concolor Ruppeu., Neue Wirbelthicre . . . , Fische, p. 83, pi. 20, fig. 4, 

 1835. 



115908, Tau Island, reef at Siulagi Point, June 27, 1939, 1 specimen, 52 mm. 

 Identification doubtful. 



52458, Apia, Samoa, Jordan and Kellogg, 1 specimen, 150 mm. 



UROPTERYGIUS SUPRAFORATUS (Rcpan) 



Oi/mnomuraena snpraforaia Regan, Ann. Mag. Nat. Hist., sor. 8, vol. 4, p. 439, 

 11*09. 



