PLATE XLI. Continued. 
Fig. 66, 67. VALVATA cristata. 
Valvata cristata, Brown's MSS. 
Turbo cristatus. Mat. and Rack, in Linn, Trans, viii. p. 169. 
Helix cristata, Mont. Test. Brit. p. 460, fig. i. vig. 7, 8. 
Fig. 68, 69. PALUDINA vivipara. 
Paludina vivipara. Lam. Si/st. vi. partie 2, p. 173. 
Cyclostoma viviparum, Drap. Moll. pi. 1, fig. 16. 
Helix vivipara, Don. Brit. Sh. pi. 87. — This shell, rare as a British species, is found in the Eden, in Cumberland. 
— In Lady Jardine's cabinet. 
Fig. 70, 71. PALUDINA achatina. 
Paludina achatina. Lam. Si/st. vi. partie 2, p. 174. 
Helix vivipara, Mont. Test. Brit. p. 386 — Da Costa, pi. 6, fig. 2. 
Fig. 72, 73. PALUDINA impura. 
Paludina impura. Lam. Si/st. vi. partie 2, p. 175. 
Helix tentaculata, Mont. Test. Brit. p. 397 — Don. Brit. Sh. pi. 93. 
Fig. 74, 75. PALUDINA ventricosa. 
Paludina ventricosa. Brown's MSS — Found plentifully in the ditches in the marshy ground near the River 
Thames, Westminster. 
Fig. 76, 77. AMPLEXIS paludosus. 
Amplexis paludosus, Broivn's MSS. 
Helix paludosa, Mont. Test. Brit. p. 440. — Mat. and Rack, in Linn. Trans, viii. p. 193, pi. 5, fig. 5'. 
Fig. 78, 79. AMPLEXIS crenellus. 
Amplexis crenellus, Broivn's MSS. 
Helix crenella, Mont. Test. Brit. p. 441, pi. 13, fig. 3. 
Fig. 80, 81. TROCHOIDEA terrestre. 
Trochoidea terrestre. Brown's MSS. 
Trochus terrestris, Mont. Test. Brit. p. 287 — Don. Brit. Sh. pi. 111. 
Fig. 82. ACHATINA alba. 
Achatina alba, Brown's MSS. 
Buccinum terrestre, Mont. Test. Brit. p. 248, pi. 8, fig. 3 — Mat. and Rack, in Linn. Trans, viii, p. 139. 
