THE NAUTILUS. 79 
The season has been a good one for collecting at Eastport. Some 
of the rare forms, like Lunatia grenlandica and Bela Pingelii, were 
found at 15 fathoms, and on the whole, there was a tendency among 
the deep water forms to the shallower water. 
THE HABITS OF FLORIDA LITTORAL MOLLUSKS. 
BY JOSEPH WILLCOX. 
Although the following facts may be well known to some Con- 
chologists, there are many undoubtedly who have not had the oppor- 
tunity of observing the habits of southern shells. It is a very inter- 
esting scene to witness the actions of many mollusks in the shoal 
waters in the bays of Florida, and on the sand flats that are ex- 
posed to the air at low tide. Below is a list of some of the shells 
that are found above the water level at low tide on the southwest 
coast of Florida: 
Fulgur perversum, Aplysia, 
F. pyrum, Sigaretus perspectivus, 
Oysters, Callista gigantea, 
Oliva literata, Nassa vibex, 
Fasciolaria gigantea, Marginella apicina, 
F. tulipa, Melongena corona, 
F. distans, Conus proteus, 
Cerithium atratum, C. Floridanus, 
C. nigricans, Cardium isocardia, 
C. muscarum, Cardium magnum, 
Cerithidea scalariformis, C. muricatum, 
Lucina Floridana. 
Aplysias do not remain voluntarily out of water at low tide, as 
they then become dry on the surface and appear to suffer for want 
of water, often emitting in such cases a large amount of purple 
fluid. They possess no power of locomotion on land. 
The Cerithium usually crawl about on the sand soon after the 
water has receded, and remain above the surface until the return of 
