Conchology — By Exchange. 



57 



JOHN RITCHIE, Jr., Boston, Mass. 



2 Specimens of Ashmunella rhyssa var. hyporhyssa Cockerell. 



Bathybembex argenteonitens Pils. 



Buliminus maritzburgensis Melv. & Pons. 



Carychima noduliformis Reinhardt. 

 2 " Enlota mackenzii Ad. & Rve. 



2 " " Ganesella tanegashimce Pils. 



3 " He?nitrochus gaymanensis Maynard. 

 3 " " maynardi Pils. 



3 " " xanthophces Pils. 



(The above three species types and cotypes.) 



2 Specimens of Leptopoma halophilum Bens. 



6 " Pupa (Bifidarid) armigerella Rein. 



3 " Stenogyra (Opeas) tucker i Pfr. 



SLOMAN ROUS, New York City. 



i Specimen of Columbarium pagoda Less. 

 I " " Lyria cassidula Rve. 



1 " " Patella nigrisquamata var. boninensis Pils. 



2 " " Pedicularia californica Newc. 



io " " Plectopylis fultoni Godwin- Austin. 



MAXWELL SMITH, New York City. 



5 Specimens of Achatinella abbreviata Rve. 



loricata Fer. 



olivacea Rve. 



ovata Newc. 



producta Rve. 



sp.? 

 Gyraulus vermicularis Gould. 

 Amalthea antiquata Linn. 

 Ancylus kirklandi Walker, 



" patelloides Walker var. 

 Arionta traskii Newc. 

 Auricula stagnalis D'Orb. 

 Barbatia gradata Swb. 

 Bulla gouldiana Pils. 

 Calliostoma gloriosum Dall. 

 Cassis tenuis Gray. 

 Carinifex newberryi Lea. 

 Cerithium ocellatutn Brug. 

 Cooperella diaphana Cpr. 

 Cyprcea helvola var. hawaiensis Melv 

 Epiphragmophora stearnsiana Gabb. 

 Erato columbella Mke. 

 Eulima polita Linn. 

 Euryta aciculata Linn. 



