Helicidse found in Japan. 467 



with the Avhorls flat, the last acutely keeled, and with the 

 sutiu-es margined. Found under bark of dead trees in the little 

 island of Dagelet, in the Sea of Japan. 



H. testa discoideo-conica, late umbilicata, rufo-cornea, oblique cos- 

 tellata ; spira depresso-conica ; anfract. 4^, planis, ultimo ad peri- 

 pheriam acute angulato ; apertura perobliqua, anguste lunata; 

 peris tomate simplici, acuto. 



Lat. 3 lin., alt. 1 lin. 

 Hab. Vladimir Bay. 

 A small, depressed species, with the whorls very finely 



obliquely ribbed, and with the last whorl acutely angulated at 



the periphery. 



Subfam. ViTMiNiNJE. 

 Gen. Hyalina, Fer. 

 1. Hyalina'^ nitida^ Mill. 

 Hah. Tsus-Sima. 



2. Hyalina ? electrina, Gld. 

 Hab. Kino-0-Sima. 



3. Hyalina {Pseudohyalina) minuscida, Binney. 

 Hab. Vladimir Bay. 



4. Hyalina {Microcystis) rejecta, Pfr. 

 Hab. Tsus-Sima. 



5. Hyalina {Microcystis) labilis, Gld. 

 Hab. Hakodadi. 



6. Hyalina { Conulus) pupula, Gld. 



Hab. Hakodadi (Stps.), Vladimir Bay (A. Ad.). 



This is the species most probably mentioned by Middendorff 

 as H. chersina, Say, in which, however, the whorls are nar- 

 rower and more numerous. 



7. Hyalina {Conidus) jphyllopMla^ A. Ad. 

 H. testa subgloboso-conica, imperforata, nitida, tenui, oblique 



striata, pellucida, succinea ; spira elata, conica ; anfract. b\, 



planis, ultimo ad peripberiam obtuse angulato, basi convexo ; 



apertura rotundato -lunata. 

 Lat. 2 lin., alt. 2 lin. 



Hab. Mososeki. 



A thin, imperforate, turbinate, amber-coloured species, with 



