56 



Conchology — By Exchange. 



specimen^of Chlorostoma rustica Gmel. 



Clanculus clanguloides Gray. 

 Crepidula walshi Hermanson. 

 Dolium perdix Linn. 



" zonatum Green. 

 Drillia flavidula Lam. 

 Eutkria ferrea Rve. 

 Hydalina albocincta Hoev. 

 Infundibulum sp.? 

 Lima squamosa Lam. 

 Mytilus sp.? 

 Nassapicta Desh. 

 Patella nigrisquamata Rve. 

 Pecten crassicostata Sowb. 



" irregularis Sowb. 



" squamosus Gmel. 

 Pleurotoma garnonsu Rve. 

 Scala lamellosa Lam. 

 Scutus unguis Linn. 

 Vulsella lingulata Lam. 



By Exchange. 



Dr. BINION, New York City. 



2 Specimens of Cyprcea cervus Linn. 

 H. GOMEZ, New York City. 



Numerous specimens of Amnicola panamensis Tryon. 

 30 " vulcani Martens. 



C. DAYTON GWYER, New York City. 



2 Specimens of Anodonta cataracta Say. 

 4 implicata Say. 



2 undulata Say. 

 1 " Fulgur canaliculata Say. 



4 " Lymncea auricularia Linn. 



I " Lunatia heros Say. 



I " Neverita duplicata Say. 



12 " Petricola pholadiformis Lam. 



3 " P kolas truncata Say. 

 3 " Solen ensis Linn. 



1 " " Tellina sp. ? 



2 " Unio complanatus Dillw. 

 Mrs. E. 0. HOVEY, New York City. 



2 Specimens of Zonites bilineata var. venusta Shebel. 

 Dr. THEODORE KORMOS, Budapest, Hungary. 



476 Specimens, embracing 50 species of Hungarian Land Shells. 



