142 THE NAUTILUS. 



PUBLICATIONS EECEIVED. 



LAKE MAKINKUCKEE, A PHYSICAL AND BIOLOGICAL SURVEY. 

 By Barton Warren Evermann and Howard Walton Clark. 2 

 Vols. Publication No. 7, Department of Conservation, State 

 of Indiana, Indianapolis, 1920. The mollusks are treated on 

 pages 41 to 75 of Vol. 11 of this, the most exhaustive work on 

 the ecology of any body of water in the United States. Very 

 full and valuable notes are given on the food habits and general 

 biology of the 14 species of Unionidte which are recorded. The 

 remainder of the list, furnished in part by Dr. Paul Bartsch, 

 contains 79 species and subspecies of freshwater bivalves and 

 univalves and 57 land snails. This brings the total number of 

 species and subspecies of mollusks from this small Indiana lake 

 and its environs to 130. Such a large number has probably 

 not been previously recorded from a similar equal area in the 

 same latitude. G. DALLAS HANNA. 



THE JOURNAL OF CONCHOLOGY. Jan., 1921, Vol. 16, No. 4. 

 On Obeliscus (Protobeliscus) riparius (Pfr. ). By Geo. C. 

 Spence, p. 135. 



Obituary Notice: Edward Collier. By R. Standen, p. 136. 



The Non-marine Mollusca of Llandudus and district. By 

 H. Beeston, pp. 136-144. 



Evolution in the Molluscan Radula. By The Rev. A. H. 

 Cooke, pp. 145-150. 



Note on Conus lineatus Solander and Conus lineatus Brug. 

 By A. T. Hopwood, p. 151. 



Scheme for the division of British marine area into census 

 areas. By R. Winckworth, pp. 152-155. 



Description of a new Galeomma from Bombay. By J. R. le 

 B. Tomlin, p. 156. 



Description of Antimitra (?) hewitti n. sp. from South Africa. 

 By J. R. le B. Tomlin, p. 156. 



Pisidium parvulum Clessin in the Great Ouse and the Severn. 

 By C. Oldham, p. 158. 



