GENUS LIMNEA, Lamarck. 



PLATE 1. FIG. 1. 



"Testa oblonga, interdiim turrita; spira exserta. Aper- 

 tura Integra, longitudinalis. Labrum acutum, inferne ad 

 sinistrum revertens et ascendens, in columellam versus 

 aperturam decurrit, plicamque obliquam mentitur. Oper- 

 culum nullum." Lamarck. 



SYNONYMS AND REFERENCES. 



HELIX, LINNAEUS. BUCCINUM, MULLER. 



BULIMUS, BRUGUIERES. 



LYMN^EA, LAMARCK. An. sans vert., vol. viii. p. 405. 



LYMN&US, LIMNJEUS, DRAP., TURTON, SAY, &c. 



LIMNEA, FLEMING, G. B. SOWERBY, Jr., etc. 



STAGNICOLA, LEACH. Mollusc., p. 141 145. (Gray.) 



CTJVIER. Mem. pour servir. a 1'Hist. et a 1'Anat. des 



Mollusques. Le Regne Animal, Mollusques, p. 71. 

 SOWERBY. Genera of Shells. 

 PENNY CYCLOPAEDIA, vol. xiii. p. 500. 



DESCRIPTION. 



ANIMAL spiral; elongated or subglobular: 

 head depressed on each side; bearing two flat- 

 tened, triangular, elongated tentacles; with the 

 eyes at their anterior internal base: mouth 



3 I 





