58 THE NAUTILUS. 



Folygyra palliata Say. (2 specimens). 



Polygyra thyroides Sa}'. (1 dead and broken shell). 



Pyramidula alternata Say. (2 specimens). 



Pyramidula cronkhitei catskillensis Pils. 



Strobilops virgo Pils. (1 specimen). 



Succinea ohliqua Say. (2 specimens). 



Zonitoides arboreus Say. (The least rare species). 



Vitrea radiahda Alder. (1 specimen). 



Agriolimax agrestis L. 



Philomycus pennsylv aniens Pils. 



Limax sp. indet. (1 specimen). 



— Wm. H. Dall. 



PUBLICATIONS RECEIVED. 



Mesozoic and Cenozoic Mactrtnae of the Pacific Coast of 

 North America. By Earl L. Packard (Univ. of CaHfornia 

 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. 

 Spinida voyi Gabb, described as a CaUista (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 



