Genus PALUDINA, Lamarck. 



Plate 1. — Fig. 1. 



Testa conoidea: apertura Integra, ovata: anfractibus con- 

 vexis: marginibus connexis, acutis: operculum corneum. 



SYNONYMS AND REFERENCES. 



Helix, Linn^us, Gmelin, Dillwin. 



Turbo. Buccinum. Vivipara. Cyclostoma. 



Nerita, Mull^r, Schroter. 



BULIMUS, (BULINUS,) PoiRET. 



Paludina, Lamarck. An. sans Vert., vol. viii. p. 509. 



„ SowERBY. Genera of Shells. 



CuviER. An. du Mus., vol. xi. p. 170 — Memoires pour 



servir a L'Histoire et a Ji'Anatomie des Mollusques. 



Anno 1817. 



DESCRIPTION. 



Animal with the head short and truncated, 

 extending a httle beyond the shell: rostrum 

 very small: mouth terminal, furnished with two 

 lateral jaws: tentacles slender and subulate, 

 the eyes situated upon an enlargement of their 



F 1 



