1818.3 GENUS SUCCINEA. ^ 28i 



Animal terrestrial, larger than its shell; tentacuh 

 four, inferior pair smaller; eyes placed at the tip of the 

 superior tentacula; operculum none. 



SPECIES. 



S. ^campestris' Shell oval, very fragile; whorls three, 

 not remarkably oblique, pale yellowish, with opaque 

 white, and vitreous lines, irregularly alternating. 



Length not quite three- fifths — breadth seven-twen- 

 tieths, of an inch. 



This shell is extremely common in many parts of the 

 Southern states; it abounds in the sea- islands of Geor- 

 gia, in the law marshy grounds behind the sand-hills of 

 the coast, where they are destroyed in great numbers by 

 the annual conflagration of the old grass; on Amelia Isl- 

 and, East Florida, I found them in plenty on the highest 

 sandy -ground of the island. On Cumberland Island, in 

 Mr. James Shaw's garden, I obtained several specimens 

 from the leaves of radishes. 



The resemblance between this species and the ovoTis is 

 very great; it differs, however, m being less • elongated, 

 and of a more robust form; the revolution of the spire 

 is much less oblique, the shell itself is thicker and less 

 fragile. 



Animal whitish; eyes, inferior tentacula, and a line 

 passing from the eyes, disappearing under the shell, 

 black; a gamboge coloured vit^a is visible through that 

 part of the shell which is opposed to the mouth. 



Genus POLYPHEMUS. (Acathina. Lamarck.) 



Shell oblong; aperture much longer than broad, r>er- 

 pendicular and parallel to the column; lip not reflected; 



