86 Mollusca — By Exchatige 



L. P. GRATACAP, New York City. 



Some 500 specimens of land and marine shells (including recent 

 fossil forms) from Bermuda. 

 CHARLES DAYTON GWYER, Brooklyn, N. Y. 



I Specimen of Pecten irradians, coated with Anomia glabra, show- 

 ing reproduction of the pecten ribs on the latter. Long Island 

 Sound. 



1 Specimen of Cyprcsa reticulatus (diseased) from Sandwich Islands. 

 4 Specimens of Oliva melchersi, Mke., from Gulf of California. 



Y. HIRASE, Kyoto, Japan. 



Cardium arenicolutn, Simetta excavata, Tellina staurella, T. 

 scobinaia; Cassis saburon, Conus viarmoretis, C. puHcarius, 

 CyprcBa tigris, C. vitellus, Haliotis ovina, Oliva irisans, 

 Strombus aratum, from Japan. 



JAMES W. JUDD, Brooklyn, N. Y. 



2 Specimens of H. {Corydd) alauda, color variety, from Cuba. 

 L. MAURER, New York City. 



1 Specimen of Conus fergusoni. Sow., from Indian Grave, Peru, 



(a very rare shell). 

 Dr. H. a. PILSBRY, Philadelphia, Pa. 



Specimens of Ashmunella chiricahuana, Dall, A. Jissideus, Pils., A. 

 lepiderma, Pils., A. levettei. Bid., A. wolkeri, Ferris, from 

 Florida Mts., N. M. 

 Mrs. JAMES SULLIVAN, New York City. 



13 Specimens of bivalves and univalves, including Anomia, Argina, 

 Melongena, Monoceras, Nerita, Pecten, Strombus, Triton, Turbo. 

 CHRISTIAN WEBER, Jersey City, N. J. 



Specimens of Amnicola, Lymncea, Physa, Planar bis (2 species), from 

 White Lake, near Blairstown, N. J. 



By Exchange 

 CHARLES DAYTON GWYER, Brooklyn, N. Y. 



2 Specimens Unio {Diplodojt) australis. Lam., from Victoria, 



Australia. 



2 Specimens of Cardium. tenuicostatum, Lam., from Victoria, 



Australia. 



3 Specimens of Tapes fumigata, Sow., from Victoria, Australia. 

 3 Specimens of Donax deltoides. Lam. , Victoria, Australia. 



I Specimen of Mactra rufescens. Lam., Victoria, Australia. 

 I Specimen of Mactra parva. Pet., Victoria, Australia. 

 WILLIAM H. WEEKS, Jr., Brooklyn, N. Y. 



I Pecten hastatus. Sow., British Columbia. 



I Pecten irradians, Linn, (yellow variety), British Columbia. 



6 Specimens rubidus, Hds., British Columbia. 



1 Specimen Chamostrea albida. Lam., Victoria, Australia. 



2 Conus anemone. Lam. (var.), Victoria, Australia. 

 5 Natica conica. Lam., Victoria, Australia. 



