Jrom the Seas of China and Japan. 159 
striata, transversim profunde sulcata, sulcis valde punctatis ; aper- 
tura angusta, antice dilatata; labio recto, antice truncato ; labro 
postice producto, rotundato. 
Hab. Mino-Sima; 63 fathoms, 
No species hitherto described resembles this: the nearest 
approach to it is R. Cranchii, Leach. AR. insculpta, Totten, is 
sculptured rather like it. The shell is solid, very strongly 
punctate-striate, and deeply umbilicated; and the inner lip is 
truncate anteriorly. 
Subgenus Aricuta, Ehrenberg. 
Testa subcylindracea, transversim striata. 
4. Alicula translucens, A. Adams. 
A, testa cylindraceo-ovata, tenui, pellucida, utrinque transversim 
striata, striis distantibus, area intermedia glabra; apertura 
angusta; labio recto, antice truncato; labro margine in medio 
rectiusculo, postice tortuoso et producto, antice crenulato. 
Hab. Port Hamilton; 10 fathoms (mud). 
This species most nearly resembles Alicula succisa, Ehrenberg, 
from the Red Sea, but is narrower and more cylindrical in form, 
and is thin and nearly transparent. 
5. Alicula secalina, A. Adams. 
A, testa cylindraceo-ovata, rimata, apice subtruncato vix perforato, 
cornea semiopaca, transversim tota striata, striis distantibus in 
medio obsoletis ; apertura lineari; labio obliquo, subincrassato ; 
labro in medio rectiusculo. 
Hab. Tsu-Sima; 25 fathoms. 
This is a small, grain-like, horn-coloured species, with the 
apex small and truncate, and the outer lip hardly produced be- 
yond it. 
6. Alicula volvulina, A. Adams. 
A. testa cylindraceo-ovata, rimata, utrinque acuminata et transversim 
striata, striis distantibus, alba, tenui, opaca, nitida; apertura an- 
gusta ; labio obliquo flexuoso, antice incrassato ; labro regulariter 
arcuato. 
Hab. Tsu-Sima; 26 fathoms. 
A little white shining species, acuminate at both ends, like a 
Volvula, but with the sunken spire and twisted outer lip of an 
Atys. 
Subgenus Sao, H. & A. Adams. 
Testa pyramidata aut pyriformis, postice attenuata, antice gibbosa. 
