FAMILY 5. LYMNAZANA. iNilal 
Pl. CLXXXIX. Fig. 3. 
CuILINA AMPULLACEA, Sowerby, Malac. and Conch. Mag., part 2. Sow- 
erby, Jun., Conch. Illus. 
Pl. CLXXXIX. Fig. 4. 
Curiina e1BBosa, Sowerby, Malac. and Conch. Mag., part 2. Sowerby, 
Jun., Conch. Illus. 
Pl. CLXXXIX. Fig. 5. 
Cuitina FLUVIATILIS, Gray, MSS. British Museum. Sowerby, Jun., 
Conch. Illus. 
Pl. CLXXXIX. Fig. 6. 
CuILINA OvALIS, Sowerby, Malac. and Conch. Mag., part 2. Sowerby, 
Jun., Conch. Illus. 
P]. CLXXXIX. Fig. 7. 
Curuina FLUMINEA, Gray, Spicilegia Zoologica, p.6. D’Orbigny, Voyage 
dans l’Amérique Méridionale, Mollusques, p. 337. pl. 43. f. 19, 20. 
Voluta fluminea, Maton. 
Limneus flumineus, D’Orbigny (Mag. de Zool.). 
Family 5. LYMNASANA. 
Testa tenuicula, levigata, apertura szpissimé ampla, margine simplici, 
acuto, nunquam reflexo. 
The Lymneana, the Pulmonés aquatiques of Cuvier and De Férussac, 
constitute a small family of air-breathing mollusks, which, though pul- 
moniferous, live entirely in water. They are the chief molluscous inha- 
bitants of ditches, fens and stagnant pools, but are compelled to rise to 
the surface in order to serve the purpose of respiration. They generally 
remain near the surface, but have the power of occasionally suspending 
