MELVILL AND STANDEN : SHELLS FROM LIFU. 397 
FaMILyY APLUST RIDE. 
Aplustrum thalassiarchi Mart.—Small, but characteristic. 
Only two occurred. Mauritius. 
Famitry OX YVOEID£. 
Oxynoe Vigourouxi Crosse.—Four examples, quite perfect. 
ORDER PROSOBRANCHIATA. 
Famity CONIDA:. 
Conus (Hermes) mitratus Bruguiere.—One beautiful and 
finely-marked specimen. _ Occurs also in the Philippines. 
Drillia cygnea M. &S., p. 379, 1897. 
D. ione M. &S., p. 277, 1896. 
D. Mariesi Souverbie.—One specimen of a neat dark-brown 
shell, elegantly noduled with white spiral beading, which 
agrees with specimens of M. Souverbie’s species in our 
National Collection. From Uvea. 
D. Rougeyroni Souverbie=D. barkliensis H. Adams.— 
Our three specimens are a little worn, but we think we are 
right in the identification. A dark-umber shell, spirally 
tornate, and noduled. 
D. themeropis M. & S., p. 278, 1896. 
D. vidualoides Garrett.—A small and very pretty form, per- 
haps too nearly allied to D. vidua Rve. or D. untzonalts 
Lam., with which latter it is united by some authors. 
D. xanthoporphyria M. & S., p. 278, 1896. 
D. (Clavus) formosa Reeve=D. lactea Hinds.—Of the 
same character is D. vidua Rve. Recorded also from 
various distant Polynesian stations. 
D. (Clavus) gibberulus Hervier. J. de Conch., vol. xlii., 
p. 143, for 1895 (1896).—Many specimens of an elegant 
smooth straw-coloured shell, with irregular prominent 
longitudinal ribs. 
D. (Clavus) protentus Hervier. 
to D. vidua Reeve, 
Too near, in our opinion, 
