192 BULLETIN 180, UNITED STATES NATIONAL MUSEUM 



the cheeks; the snout and lower jaw are grayish; from the ventral 

 part of the second white bar, along each row of scales posteriorly are 

 pale spots ; these pale spots occur on each scale of the anal fin basally ; 

 the dorsal and posterior margin of the soft dorsal fin white ; pectoral 

 fin paler than body; pelvics blackish; near the tips of the longest 

 rays of the soft dorsal is a black spot ; the smallest specimen, 22 mm. 

 in standard length, has the same general color pattern as the larger 

 ones, but the third white bar on the dorsal fin has posteriorly a black 

 ocellated spot; the white of this third bar curves around the black 

 spot, this ocellated spot covering the first to ninth soft rays of the 

 dorsal fin ; there is no black spot near the tips of the dorsal soft rays, 

 as in larger specimens. 



Remarks. — This new species resembles most closely in color 

 Glyphisodon alhofasciatus Hombron and Jacquinot ^^ but differs from 

 it and all other species in coloration. It is separated from other 

 species of the Phoenix and Samoan Islands by the key that I have 

 prepared for this family, 



Ahudefduf phoenixensis differs from A. albofasciatus (Hombron 

 and Jacquinot) in having XII, 16 or 17 dorsal rays and II, 13 or 14 

 anal rays instead of XIII, 17 or 18 dorsal and II, 12, anal rays. In 

 addition, there are only three white bands on the side of the body 

 of A. albofasciatus instead of four as m A. phoenixensis; the black 

 color of the caudal peduncle extends halfway out on the caudal fin of 

 the former and not at all on the new species ; there are no black spots 

 on the soft dorsal fin in the figure of A. albofasciatus. 



In Bleeker's Atlas, plate 405, figure 6, of Glyphidodontops albo- 

 fasciatus^ are shown four white bars and a basal black spot in the soft 

 dorsal; this figure has XIII, 12 dorsal and II, 13 anal rays, unlike 

 the new species. Bleeker's figure shows a black spot distally at the 

 tips of the midcaudal fin rays, a white streak across the anal fin, and 

 white spots on top of the head, all lacking in the new species. 



Although these figures may be incorrect in regard to fin-ray counts, 

 there are so many other differences it seems best to describe the pres- 

 ent form as a new species, based on specimens known to have been 

 taken from Enderbury, Hull, Swains, Rose, Johnson, and Wake 

 Islands. 



Named phoenixensis in reference to the group of Phoenix Islands 

 where it was taken in great numbers. 



ABUDEFDUF DICKII (Li^nard) 



QlypMsodon dickii Li^naed, 10'"* Rapp. Ann. Soc. Hist. Nat. Maurice, p. 35, 1839. 

 115787, Hull Island, channel, July 7-17, 1939, 2 specimens. 

 115789, Hull Island, reef, July 12-15, 1939, 2 specimens. 

 115791, Hull Island, channel, July 8-12, 1939, 1 specimen. 



" Voyage au Pdle Sud. . . . Astrolabe, vol. 3, pi. 5, flg. 4, 1853. 



