58 THE NAUTILUS. 



Polygyra palliata Say. (2 specimens). 



Polygyra thyroides Say. (1 dead and broken shell). 



Pyramidula alternata Say. (2 specimens). 



Pyramidula cronkhitei catskillensis Pils. 



Strobilops virgo Pils. (1 specimen). 



Succinea obliqua Say. (2 specimens). 



Zonitoides arboreus Say. (The least rare species). 



Vitrea radiatula Alder. (1 specimen). 



Agriolimax agrestis L. 



Philomycus pennsylvanicus Pils. 



Limax sp. indet. (1 specimen). 



WM. H. BALL. 



PUBLICATIONS EECEIVED. 



MESOZOIC AND CENOZOIC MACTRINAE OF THE PACIFIC COAST OF 

 NORTH AMERICA. By Earl L. Packard (Univ. of California 

 Publ., Bull. Dept. of Geology, Vol. 9, No. 15, pp. 261-360, 

 pis. 12-35, May, 1916). 



This thorough and interesting account of the fossil Mactrinae 

 of that region has also considerable bearing on the recent forms. 

 Spisula voyi Gabb, described as a Callista (1869) is found to be 

 the same as S. alaskana Dall 1894. Eight new species and one 

 new variety are described. The illustrations are excellent. 



NEW MIOCENE FOSSILS. By Axel Olsson (Bull. Amer. Pal- 

 eontology, Vol. 5, No. 27, 32 pp., 3 pis., July, 1916). 



In this paper are described and figured 34 new species and 3 

 new varieties of mollusca from the Yorktown, Duplin and 

 Choptank formations of Virginia, North Carolina and Maryland, 

 and one species from Alum Bluff, Fla., also a new subgenus 

 Heterocerithiopsis. 



A PRELIMINARY CATALOG OF THE NORTH AMERICAN SPHAE- 

 RIID.E. By Victor Sterki, M. D. (Annals of the Carnegie Mu- 

 seum, X, 1916). 



The last general work on our species of this family was that 

 of Prime published in 1865. The growth of collections of 

 freshwater shells since that time has been enormous, and large 



