PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 335 
tiful, and a good many of which have received names from closet nat- 
uralists. 
Tectarius muricatus Born. 
Key West, on rocks between tides, extremely abundant. 
Planazis lineata Lam. 
Key West, on rocks between tides, gregarious and abundant. This 
common West Indian form has apparently not been hitherto reported 
from our shores. 
Assiminea concinna C. B. Ad.* 
Key West, reefs at low water, common. I have not been able to 
compare this with a specimen of Adams’ shell, but the description agrees 
fairly. 
Assiminea auberiana D’Orb. 
Near high-water mark at Cedar Keys, among the grass. A Cuban 
species. 
Watica canrena L. 
Sarasota Bay, on the sand near low-water mark, not rare. 
Neverita duplicata Say. 
Cedar Keys, on the mud flats, common. <A widely distributed spe- 
cies with several near relatives. 
Phasianella umbilicata D’Orb. 
Key West, rare on the reefs at low water. A Cuban species with 
which P. affinis, C. B. Adams is perhaps identical. : 
Weritina reclivata Say. 
Tampa, abundant between tides. This, like many of the large species 
of Neri/ina, seems to be strictly an inhabitant of salt water. 
Modulus lenticularis Chemn. 
Key West only dead ones on the beach. It is closely allied to the 
next species. i 
Modulus floridanus Conrad. 
‘Sarasota Bay, on the broad leaves of a marine grass, abundant. I 
have not seen typical specimens of either, but suspect it is the M. cor- 
rugatus of Stimpson referred to in some catalogues, but described I do 
not know where. Also at Cedar Keys. 
Adeorbis adamsi Fischer. 
Cedar Keys, on the mud flats, rare. Common to the Antilles. 
Galerus candeanus D’Orb. 
Sarasota Island, on the beach; not rare, but only dead ones were 
found. A Cuban species. 
Crepidula unguiformis Lam. 
Sarasota Bay, on the outside of “ coon oysters,” between tides, abund- 
ant. 
