THE NAUTILUS. 119 



Mr. Chas. T. Simpson left Washington last month for a collect- 

 ing tour in Florida. 



The Physa seem to be a rather difficult object of study, 

 as they present various aspects in different ages and from different 

 places. They should be carefully collected and labelled and com- 

 pared from a locality in the various seasons, as far as possible. — 

 Conf Mr. Steam's article in Nautilus IV, 5. — Dr. V. Sterki. 



Florida Helices. — We collected 500 well developed Helix 

 jejuna on the tops of grass and weeds where they had taken refuge 

 from the water a foot or more in depth. We also found a small 

 form of Vertigo ovata and V. ovulum Sterki, also Helix auriculata 

 and a variety of Helix Postelliana in great abundance. The 

 water had driven them out to where they were easily found. — Geo. W. 

 Webster, Lake Helen, Florida. 



In Zoe, vol. II, p. 134, Mr. Henry Hemphill has given a list of 

 the West Coast mollusks which he has himself eaten, or known to 

 be eaten by others. " All four of the Abalones, riifescens, corru- 

 gata, fulgens and Crachrodii, are edible, and their fine flavor has 

 long been known to the sailors, fishermen and ranchers along the 

 coast of California." 



Helix jejuna is found in the pine woods of Florida, and, so far 

 as I know, is the only snail found in high pine timber. — Geo. W. 

 Webster. 



A specimen of Pleurotomaria Adansoniana Crosse ct Fischer, 

 lately found on the Island of Tobago, West Indies, has been jDur- 

 chased by Mr. R. F. Damon, of Weymouth, England. It is the 

 largest specimen of the species known. Mr. Damon has published 

 a life-size figure of this magnificent specimen. 



EXCHANGES. 



Marine, laud and fresh-water shells to exchange for the same from 

 other localities. Lists exchanged. AVould also exchange shells for 

 works on conchology. — Thomas Morgan, P. 0. Box 164, Somerville, 

 N.J. 



For exchange. — Land, fresh- water and marine shells from East 

 and South-east Fla., for shells from other localities. — Geo. W. 

 Webster, Lake Helen, Volusia Co., Florida. 



