374 
Back olive brown, sides and below silvery white. Dorsal 
and caudal brownish, inner part of each lobe of latter little darker. 
Anal whitish. Pectoral dusky to blackish brown terminally, with broad 
whitish basal area below, upper basal area dusky. Ventral pale to 
whitish, scarcely brown mddially. 
Diagnosis . Related to Cypselurus rondeletii in its 2 
uppermost simple pectoral rays, but differs markedly in the presence of 
a large pale blotch below and subbasally on each pectoral. 
Type, U, S, N. M., no, 65810. 
This species also closely resembles Cypselurus ymbescens 
(Rafineque) and may be further distinguished by its similar markings 
on the pectoral fin less contrasted, or not so decidedly black and 
white. 
U, S. N, M., no, 65810, Guam, Albatross Collection (A 200), Length 
280? mm. As Cypsilui*us speculiger. Type, 
U, S, N, M,, no, 89734, Lat, 7° S,, long, 124° Tsf, September 7, 1929, 
Dr. A, K, Fisher. Pinchot Expedition, Length 300? mm. As Cypselurus 
rubescens, (alba whiter macula spot, with reference to the white 
pectoral blotch#) 
Cypselurtis rondeletii (Valenciennes) 
Exocoetus rondeletii VALENCIENHES, Hist# Hat# Poiss#, vol# 
19, p, 115, pi. 562, 1846 (type locality: Naples; Sicily; 
Canaries), —WAITE, Rec, Austral, Mus., vol. 5, p. 156, 1904 
(Lord Howe Island), 
