LIST OP CONTRIBUTORS. 147 



1'ii.sbrv. Henry A. Continued. 



The radula in rhipidoglossate miollusks. P '89, 136 



Nomenclature and check-list of North American land shells. 



P '89, 191 



On the anatomy of Aerope and Zing-is. P '89, 277 



On the anatomy of Aerope caffra Fer. P '90, 41 



Note on a southern Pupa. P '90, 44 



On a new Bulimulus. P '90, 63 



New East Indian land shells. P '90, 186 



Trochidse, new and old. P '90, 343 



Description of a new Japanese Scalpelhun. P '90, 441 



Note on the soft parts and dentition of Stomatella. P '91, 71 



Land and fresh- water mollusks collected in Yucatan and 



Mexico. P '91, 310 



Mollusea from Nantucket, Mass. P '91, 406 



The newest species of West Indian land shells. P '91, 456 



New and hitherto unfigured Japanese mollusks. P '91, 471 



Anatomy of West Indian Helices. P '92, 128 



New and unfigured Unionidre. P '92, 131 



A new species of Pachychilus. P '92, 153 



On the anatomy of Sagda, Cystioopsis, iEgista and Den- 



tellaria. P '92, 213 



A new marine gasteropod from New Jersey. P '92, 328 



Notes on a collection of shells from the State of Tabasco, 



Mexico. P '92, 338 



Preliminary outline of a new classification of the Helices. 



P '92, 387 



Thysanophora coloba. P '93, 403 



Critical list of mollusks collected in the Potomac Valley. 



P '94, 11 



A new Central American Pupa. P '94, 61 



List of Port Jackson chitons collected by Dr. J. C. Cox with 



a revision of Australian Aeanthochi1id£e. P '94, 69 



Patella kermadecensis. P '94, 208 



Prefatory note to Gwatkin and Suter's observations on the 



dentition of Achatinellida?. P '95, 237 



On the status of the names Aplysia and Tethys. P '95, 347 



Pleurotomaria crotaloides Morton in the New Jersev Cre- 



taceous. P '96, 10 



— New species of the helicoid genus Polygyra. P '96, 15 



— Descriptions of new species of mollusks. P '96, 21 



