f HE NAUTILUS. 



Obliquaria refiexa Baf. Common. 



Obliqnaria lens Lea. 



Ptyckobranchus phaseolus Hild. 



Strophitus edentnlns Say. 



TrunciUa perplexa Lea. 



TrunciUa perplexa rangiana Lea. 



TrunciUa triquetra Rat'. 



Pleurobema clara Lam. 



Pleurobema cesopus Green. 



Pleurobema edyariana Lea. 



Obovaria circulus Lea. 



Tritigonia verrucosa Raf. U. tubercvlatus Barnes. 



Cy progenia irrorata Lea. Common. 



Micromya lapillus Lea. 



Alasmodonta rugosa Barnes. Common. 



Alasmodonta deltoidea Lea. 



Alasmodonta minor Lea. Gasper River. 



Alasmodonta truncata (Say) Wright. 



Anadontoides ferussacianus Lea. 



Anodonta imbecilis Say. Rivers and ponds near rivers. 



Anodonta grandis Lea. 



Anodonta grandis gigantea Lea. 



Sphcerium sulcatum Lam. 



Splicer I urn fabale Prime. River and creeks. 



Calyctdina partumeia Say. 



Calyculina transversa Say. 



Pisidium virginicum Gm. Rivers and ponds. 



Pisidium peraltum Sterki. Ponds. 



NEW SPECIES OF JAPANESE LAND MOLLUSCA. 



BY II. A. PILSBRY. 



Eulota (Plectotropis) kiusiuensis n. sp. 



Shell openly umbilicate, depressed, acutely carinate, light yellow- 

 ish brown, slightly shining. Surface densely but lightly striate 

 spirally, under a thin cuticle which bears rather wide-spaced, irregu- 

 larly developed lamcllse ending in short shreds at the periphery, the 



