Mr. A. Adams on new Mollusca from Japan. 43 



2. Auriculina Grayi, A. Adams. 



A. testa ovato-acuta, subrimata, semiopaca, alba ; anfractibus norma- 

 libus 4, convexiusculis, transversim tenuissime striatis ; anfractu 

 ultimo amplo ; apertura oblonga, antice producta ac angulata, 

 postice acuminata ; labio subincrassato, antice vix reflexo. 



Hab. Mino-Sima; 63 fathoms. 



I have already noticed this species in a former paper, but now 

 add a rather fuller description of the specific characters. It is 

 the largest species in the genus. 



Genus Aclis, Loven. 



1. Aclis Loveniana, A. Adams. 



A. testa turrita, subulata, imperforata, alba; anfractibus 11, con- 

 vexis, transversim sulcatis ; anfractu ultimo antice subproducto ; 

 apertura oblonga, longiore quam latiore ; labio arcuato, vix incras- 

 sato ; labro intus sulcato. 



Hab. Port Hamilton ; 7 fathoms. 



This is a large shell for the genus, and resembles an elegant 

 little Turritella. I think, however, the texture and appearance 

 must refer it to this genus. A minute examination of the 

 nucleus, which I am at present unable to make, would determine 

 the point. 



2. Aclis crystallina, A. Adams. 



A. testa imperforata, subulato-turrita, hyalina, tenui, vitrea ; anfrac- 

 tibus normalibus 9, ad suturas angustatis, simpUcibus ; anfractu 

 ultimo elongate, antice producto ; apertura ovata ; labio tenui, 

 arcuato ; labro antice effuso. 



Hab. Tsu-Sima; 16 fathoms. 



3. Aclis fulgida, A. Adams. 



A. testa umbilicata, turrita, alba, polita, nitidissima, opaca ; anfrac- 

 tibus convexis, Isevibus ; apertura circulari, antice vix producta ; 

 labio arcuato ; labro margine postice subangulato. 



Hab. Tsu-Sima J 16 fathoms. 



This shell is very elegantly formed, but has lost some of the 

 upper whorls. When perfect, this species would be the most 

 beautiful in a genus where all the s])ccies are beautiful. 



Genus Ebala, Gray. 

 1. Ebala diaphana, A. Adams. 



E. testa subulata, turrita, imperforata, nitida, pellucida, vitrea, apice 

 obtuso ; anfractibus 7, convexiusculis, -suturis marginatis, anfractu 



