Leidy, Joseph, M. D. The Boring-Sponge, Cliona 70 



McMurrich, J. Playfair, Ph. D. A Contribution to the Actinology of the Ber- 

 mudas (Plates VI and VII) 102 



Marx, George, M. D. A Contribution to the Knowledge of the Spider 



Fauna of the Bermuda Islands (Plate IV) 98 



On a new Species of Spider of the Genus Dinopis from the Southern 



United States (Plate XI) 341 



Meehan, Thomas. Contributions to the Life-histories of Plants, No. IV 53 



Meek, Seth E. and Charles H. Bollman. Notes on Elagatis bipinnulatus.... 42 

 Morrison, Willard L. A review of the American Species of Priacanthida?.... 159 

 Pilsbry, Henry A. New and Little-known Species of American Mollusks, 



No. I (Plate III) 81 



Nomenclature and Check-List of North American Land Shells 191 



On the Anatomy of Aerope and Zingis (Plate IX) 277 



New and Little-known American Mollusks, No. II (Plate XII) 411 



Safford, J. M. and A. W. Vodges. Description of new Species of fossil Crus- 

 tacea from the Lower Silurian of Tennessee with remarks on others 



not well known 16j 



Scott, Wm. B. Notes on the Osteology and Systematic Position of Dinktis 



felina, Leidy 211 



Shufeldt, R. W. Observations upon the Development of the Skull in Neo- 

 toma fuscipes ; a contribution to the Morphology of the Rodentia 



(Plates I, II) 14 



Stone, Witmer. On Pratincola Salax, Verr. and Allied Species 78 



Catalogue of the Muscicapidse in the Collection of the Academy of Nat- 



tural Sciences of Philadelphia 146 



Williston, S. W., M. D. The Sternalis Muscle 38 



Wingate, Harold. Orcadella operculata Wing., a new Myxomycete 280 



