HelicidiB found in Jajyan. 465 



pheriam obtusim subangulato ; apertura rotundato-lunata, per- 



obliqua ; peristomate breviter reflexo, ad basim regulariter ar- 



cuato. 

 Lat. 5 lin., alt. 2\ lin. 



Hah. Kino-0-Sima. 



This species resembles somewhat in form and colour H. 

 Stimpsoni^ Pfr. ; but it is more depressed, the umbilicus is 

 wide and perspective, and the peritreme has not the peculiar 

 bend seen in H. genulabris and H. Stimpsoui. 



28. Helix [Fruticicola) concinna^ A. Ad. 



H. testa orbiculato-depressa, rufo-cornea, tenui, perforata, umbilico 

 modico, oblique strigosa, striis volventibus conspicuis decussata ; 

 spira obtusa, elatiuscula ; anfract. 5, convexiusculis, ultimo ad 

 peripheriam rotundato ; apertura lunata ; peristomate recto, acute, 

 ad umbilicum reflexo. 



Long. 6 lin., alt, 4 lin. 

 Hah. Tago. 

 A thin light-horncoloured species, with the revolving striae 



very distinct, and with the peritreme sharp-edged. 



29. Helix [jEgista) Friedeliana^ Martens. 

 Hab. Nangasaki (Martens). 



I do not know this species. 



30. Helix [Plectotrojois) ciliosa^ Pfr, 

 Hah. Tsus-Sima, Awa-Sima, Tabu-Sima. 



31. Helix [Plectotropis] squarrosa, Gld. 

 Hah. Kino-0-Sima, Tsus-Sima, Tsaulian. 



32. Helix [Plectotropis) conella, A. Ad, 



//, testa orbiculato-eonica ; spira depressa, umbilico modico, perfo- 

 rata, ochraceo-cornea, tenui, squarrosa, oblique valde strigosa ; 

 epidermide in lineis interruptis obliquis disposita; anfract, 6, 

 planis, ultimo ad peripheriam acute carinato, basi convexo ; peri- 

 stomate acuto, expanse, et breviter reflexo. 



Lat. 5 lin,, alt. 3 lin. 



Hah. Tabu-Sima. 



Most like H. squarrosa^ Gld., in colour and surface, which is 

 scabrous and scaly; but the periphery, instead of being rounded, 

 is acutely keeled ; and the umbilicus, instead of being large 

 and deep, is moderate. 



33. Helix [Plectotropis] setociyicta^ A. Ad. 

 H. testa orbiculato-eonica ; spira depressa, umbilico lato et profundo 



