LIMNAINAE. 85 
LIMNACIN ZL. 
Genus LIMN A A, Lamarck. 
For description of the animal, see Halde- 
man’s Monograph. Lamarck’s first species in 
the “ Animaux sans Vert.” is the Columna 
flammea, a terrestrial mollusk; we cannot 
therefore take it as the type of the genus. The 
second species is stagnalis, but that is the type 
of Klein’s genus Auricula. If we adopt the 
latter name in preference to Lamarck’s, having 
priority, the name of the terrestrial genus 
Auricula, Lam., will have to be changed. 
Under these circumstances it seems most de- 
sirable to restrict the Lamarckian generic name 
to certain species only of the genus, and to 
separate as subgeneric L. stagnalis, etc., apply- 
"ing to them Klein’s name Auwricula, thus pre- 
serving both names. 
The following are the subgeneric divisions 
and the species belonging to each, those 
characterized in Haldeman being printed in 
(59) 
