192 PERISTOMATA. 
25. P. gibba, Michaud; Draparnaud, Moll. pl. 13. f. 4-6. 
Cyclostoma gibbum, Draparnaud. 
26. P. gigas, Lesson, Revue Zool. Cuv. Soc. 1841. 
27. P. grana, Say, Journ. A. N.S. Phil. v. 2. p. 378. 
28. P. granum, Menke, Moll. Novee. Hollandiee, p. 8. 
29. P. impura, Lamarck; Turton, Manual, f. 120. 
Helix tentaculata, Linneeus; Nerita tentaculata, Miller ; 
Bulimus tentaculatus, Poiret ; Cyclostoma impurum, Drapar. 
Cyclostoma tentaculatum, Ferussac. 
. ponderosa, Say, Amer. Conch. pl. 30. f. 1. 
. porata, Say, Jown. A. N. 8. Phil. v. 2. p. 174. 
. rubens, Menke; Philippi, Enum. Moll. pl. 9. f. 4. 
. scalaris, Jay, Cat. of Shells, pl. 1. #8, 9. 
. similis, Michaud; Draparnaud, Moll. p. 93. no. 1. 
Cyclostoma simile, Draparnaud. 
30. P. integra, Say, Journ. A. N. 8. Phil. v, 2. p. 174. 
31. P. Isabelliana, D’Ordigny, Voy. Amer. mérid. pl. 75. f. 4-6. 
32. P. lapidum, D’Orbigny, Voy. Amer. mérid. pl. 47. f 4-9. 
33. P. limosa, Say, Journ. A. N.S. Phil. v. 1. p. 125. 
34. P. lustrica, Say, Journ. A. N.S. Phil. v. 2. p. 175. 
85. P. magnifica, Conrad, Freshwater Shells, pl. 8. f. 4. 
36. P. marginata, Michaud; Draparnaud, Moll. pl. 15. f. 58, 59. 
37. P. miliaris, Parreys, Jay’s Cat. of Shells, p. 64. 
38. P. multicarinata, Cailliaud, Voy. & Méroé, pl. 60. f. 6. 
89. P. Naticoides, Ferwssac; Jay’s Cat. of Shells, p. 64. 
40. P. nigra, D’ Orbigny, Voy. Amer. mérid. pl. 75. f. 16-18. 
41. P. olivacea, Soverby, Tankerville Cat. p. 9. no. 1069. 
42. P. Parchappii, D’ Orbigny, Voy. Amer. mérid. pl. 48. f. 1-3. 
43, P. Parreyssii, Pfeiffer, Moll. de ’ Allemagne, p. 227. 
44, P. parvula, Guilding, Zool. Journ. v. 3. p. 537; Supp. pl. 28. f. 1-3. 
45. P. peristomata, D’ Orbigny, Voy. Amer. mérid. pl. 47. f. 1-3. 
46, P. Petitiana, D’ Orbigny, Voy. Amer, mérid. pl. 75. f. 19-21. 
47. P. petrosa, Gould, Pro. Boston Soc. Nat. Hist. 1843. p. 144. 
48. P. piscium, D’Orbigny, Voy. Amer. mérid. pl. 47. f. 17-21. 
P 
P 
P 
P 
P 
54. P. semistriata, D’ Ordigny, Voy. Amer. mérid. pl. 75. f. 10-12. 
55. P. striata, D’Orbigny, Voy. Amer. mérid. pl. 75. f. 7-9. 
56. P. subcarmata, Say; Jay’s Cat. of Shells, p. 64. 
57. P. thermalis, Draparnaud, Moll. pl. 1. f. 24, 25. 
Turbo thermalis, Linneeus ; Paludina muriatica, Lamarck. 
58, P. unicarinata, Sowerdy, Genera of Shells, no. 41. 
