CONTENTS 



OF THE 



ELEVENTH VOLUME. 



BY S. T. BARRETT. 



PAGE. 



Notes on the Lower Helderberg Rocks of Port Jervis, N. Y., with descrip- 

 tion of a new Species of Pteropod, (Art. XXVII) 290 



BY W. G. BINNEY. 



On the Genitalia and Lingual Dentition of Pulmonata, (Art. IV) 20 



BY W. G. BINNEY AND THOMAS BLAND. 



On the Genitalia, Jaw and Lingual Dentition of certain species of Pul- 

 monata, with a note on the Classification of the Achatinellse, 

 (Art. XX) 166 



BY THOMAS BLAND. 



Notes on Certain Terrestrial Mollusks, with Descriptions of New 



Species, (Art. VIII) 72 



Notes on the Sub-Generic character of Helix Jamaicensis, Chemn., and 

 on Certain Terrestrial Mollusks from Haiti ; with Description of 

 a New Species of Helix from Colorado, (Art. XVI) 146 



Notes on Certain Terrestrial Mollusks, with Description of a New Spe- 

 cies of the Genus Amphibulima, (Art XXI) 197 



BY H. CARRINGTON BOLTON. 



Index to the Literature of Manganese, (Art. XXIII) 208 



BY WILLIAM BREWSTER. 



Some Observations on the Birds of Ritchie County, West Virginia, 



(Art. XV) 129 



Some Additional Light on the so-called iSterna Portlandica , Ridgway, 



(Art. XXII) 201 



BY M. C. COOKE. 



The Myxomycetes of the United States, (Art. XXX) 378 



BY AUGUSTUS R. GROTE. 



0:i a New Species of Anarla, and on an Allied Genus, with a Note on 



the Genus Adita, (Art. XII) 107 



Note on a Name in Entomology proposed by the late Coleman Townsend 



Robinson, (Art. XIV) 128 



Descriptions of New Noctute, with remarks on the Variation of Larval 



Foims in the Group, (Art. XXVIII) 300 



