1898.] NATURAL SCIENCES OF PHILADELPHIA. 525 



KECENT MOLLUSCA. 



T. H. Aldrich. Twenty-two species of marine shells from Sumatra. 



Dr. Harrison Allen. One tray of Pisidium from Nantucket 

 Island. 



American Entomological Society (Entom. Sec. Acad.). Thir- 

 teen species from the collection of the late Dr. George H. Horn. 



Mrs. George Andrews. Seven species of land shells from Ten- 

 nessee. 



E. H. Ashmun. Fifty-one species of land and freshwater mollusks 



from New Mexico and Arizona. 

 Frank C. Baker. Nineteen species of freshwater shells from 



Illinois. 

 C. A. Barker. Three species of land mollusks from West Indies. 

 W. T. Bednall. Two hundred and ninety-eight species of marine 



shells from South Australia. 

 Francisco E. Blanes. Seven species of Cerion from Cuba. 

 J. H. Britts. Four species of G onto basis from Missouri and North 



Carolina. 



F. L. Button. Five species of marine shells from California. 

 R. E. C. Call. One tray of Pisidium from New Mexico. 



Mrs. Julia Chandler. Pholas costata Linne" from Long Beach, 



Mississippi. 

 George H. Clapp. Nine trays of land shells from Pennsylvania. 

 T. D. A. Cockerell. Nineteen species of land and marine mollusks 



from West Indies and New Mexico. 

 M. Cossman. Four species of marine and laud shells from Europe 



and Africa. 

 Dr. J. C. Cox. Three trays of marine shells from New South 



Wales. 

 Dr. W. H. Dall. Four species of land and marine mollusks from 



California. 

 Rev. A. Dean. One tray Zonites from Florida. 

 Mr. Desmond. Fifteen trays of marine mollusks. 

 Dr. Samuel G. Dixon. Two species of mollusks from Maine. 

 H. F. Dore. Two species of Fluminicola from Oregon. 

 J. H. Ferriss. Twenty-two species of land shells from the Great 



Smoky Mts. 

 John Ford. Sixteen species of marine shells. 

 H. W. Fowler. Four species of freshwater shells from the crop of 



a duck. 



