FAMILY 5. LYMNAZANA. EY5 
however, though advocated by Lamarck, has been abandoned by Sow- 
erby. 
The shell of Lymnza may be described as being oblong or ovate, some- 
times turriculated, with the outside either polished, or covered with a dark 
epidermis ; the spire is sharp, and generally prominent ; the columella is 
twisted, and for the most part characterized by a single plait ; the aper- 
ture is large and longitudinal, narrowed towards the upper part, the mar- 
gins being disjoined, with the lip very sharp and thin. 
Examples. 
Pl. CXCL. Fig. 1. 
Lymna stacNa.is, Draparnaud, Hist. Moll. Fluv. et Terr., pl. 2. f. 38 
and 39. Turton, Manual, p. 121. f. 104. 
Helix stagnalis, Linneus. 
Buccinum stagnale, Miller. 
Bulimus stagnalis, Bruguiére. 
Pl. CXCL Fig. 2. 
Lymna rurescens, Gray, MSS. Sowerby, Genera of Shells, No. 7. 
Pl. CXCI. Fig. 3. (fossil.) 
Lymn Fusirormis, Sowerby, Mineral Conchology, pl. 169. f. 2 and 3. 
Pl. CXCI. Fig. 4. 
Lymnza ovatis, Gray, MSS. Sowerby, Genera of Shells, No. 7. 
Pl. CXCI. Fig. 5. 
Lymnaa GLutinosa, Draparnaud, Hist. Moll. Fluv. et Terr., p. 50. Tur- 
ton, Manual, p. 120. f. 103. 
Bulimus glutinosus, Bruguiére. 
Buccinum glutinosum, Miller. 
Helix glutinosa, Gmelin. 
Amphipeplea glutinosa, Rossmaesler. 
Q2 
