423 



Inhabits HakocTadi, among dead leaves, in woods. 

 Very nearly allied to H. miselld. 



Helix pdpula. T. minuta, ovato-conica, levis, succinea, 

 infra convexa, indentata ; anfr. 6-|- tabulatis, ad peripheriam ob- 

 tuse angulatis. Apertura transversa, lunata ; labro siraplici, colu- 

 mella recta, reflexa. Axis ad ^ poll. 



Among dead leaves in woods, Hakodadi (Isl. Jesso). 



Very much like our chersina, or the European y'HZt'a. 



Helix pauper. T. parva, discoidea, rufo-cornea, striis in- 

 crementi costulata, subtus calyculata ; anfr. 4^ convexiusculis ; 

 sutura profunda. Apei'tura perobliqua, prona, rotundata ; peris- 

 tomate simplici. Diam. y^g- ; axis -^ poll. On dead wood in thick- 

 ets, Petropaulski, Kamtschatka, also Hakodadi (Isl. Jesso). 



Allied to ff. rotundata and perspectiva. Probably the same 

 noted by Middendorff' as H. ruderata of Europe. 



Helix operculina. Testa tenuis, depressissima, rufo-cornea ; 

 anfr. 5 concavo-convexis, ad peripheriam acutissime carinatis, 

 marginatis ; subtus concava deinde convexa. Apertura angustis- 

 sima, sigmoidea, peristomate vix reflexo. Axis -^^ ; diam. -/(j poll. 



Inhabits Peel Isl. (Bonin Is.) Mr. Wright. 



An exceedingly depressed species, looking much like the oper- 

 cle of some Trochus. 



Helix squarrosa. Testa planorboidea, squarrosa, ochra- 

 ceo-cornea, subtus pallidior, convexa, late umbilicata; anfr. 6 con- 

 vexiusculis, ad peripheriam subangulatis. Apertura parva, an- 

 gusta, lunata ; peristomate simplici, ad columellam reflexo. 



Diam. -^^ ; axis -^^ poll, (probably immature.) 



Ousima (Japan), among stones on hill sides. 



Well distinguished by its large deep umbilicus, ochreous color, 

 and rough, scaly surface. Allied to Shanghaiensis. 



Nanina pisolina. Testa fragilis, vitrea, levis, raellita, orbi- 

 cularis, subtus convexior, imperforata ; anfr. 3^ depressis, ad 

 peripheriam rotundatis. Apertura lunata, labro ubique simplici. 

 • Diam. \ ; axis ^ poll. Cape of Good Hope (?) 



