THE NAUTILUS. an 
there are literally covered with Siphonaria lineolata and Littorina 
lineata. One thing was very noticeable to me while collecting there, 
and that was the great numbers of Strombus pugilis. While living 
on the lake for seven years, I only found six living onesin the lake, 
and now there are thousands. The largest, S. gigas, are fast disap- 
pearing. 
While on the flats at the old inlet, one mile below the present in- 
let, I discovered a colony of Cerithium minimum which attracted 
my attention by their distorted growth, and I at once collected half 
a pint of them. The spot where they were located was somewhat 
higher than the main flat, and at low tide would be exposed for 
several hours at a time. Whether this exposure caused this strange 
growth, or some other condition of immediate surroundings, I am 
at a loss to determine. I took especial pains to examine those at 
the present inlet, and I failed to find the distorted ones there, al- 
though they, at times, are exposed to the sun at low tides. 
I found some Calistas on the mud flats east of Pitt’s Island, a 
mile north of the inlet, which were new to me. On sending them 
to Professor Pilsbry they proved to be Calista varians, and are said 
to be the first reported from Florida. Suites of these have been 
sent to the Academy of Natural Sciences at Philadelphia and to the 
Smithsonian Institution and to some members of the Chapter, and 
so the list was soon disposed of. I also found a nice suit of Venus 
eribraria, which was also given to the Smithsonian Institution. I 
came away from Lake Worth well pleased with the results of two 
days’ collecting. 
During the past year I have made thirty-seven exchanges with 
persons in all sections of the country, and have added four hundred 
and twenty different varieties to my collection. My correspondence 
with the members of the Chapter has been pleasant, and all the ex- 
changes very satisfactory. (Mr. White’s generous offer to send 
shells to the members of our Chapter was published in THE Nav- 
Titus for February. By this time the stock would be exhausted). 
NOTES AND NEWS. 
SINISTRAL AMPULLARIA.—It may be of interest to readers of the 
Nauriuus to know that in the collection of Ampullaria of the Acad- 
emy of Natural Sciences of Philadelphia, numbering about an hun- 
