[Pl. XVI.] Chemnitzia 1, 2, as similis, 4, 8. Natica 13, 17, as Catena, 19, as Grœnlandica. Velutina 21. Trichotropis 26.
[Pl. XVII.] Odostomia 1, 8, as plicata, 9, as plicata, 10?, 12.
[Pl. XVIII.] Purpura 5. Buccinum 10? Fusus 15, as Trophon, 16, as Tr., 17, as Tr. gracile, 18, as Tr. T., 19, as Tr. p. Trophon 22, 24.
[Pl. XIX.] Nassa 1, 2. Mangelia, as Clavatula, 4, 5, 8, as Philberti, 9, 11, as Boothii, 12, 14, 15, 17?, 21, 22. Erato 27. Cypræa 28.
[Pl. XX.] Tornatella 1, as Actæon tornatilis. Ovula 3, as Bulla. Cylichna, as Bulla, 4, 5, as regulbiensis, 7, 9, 12. Bulla 19. Philine as Bullæa, 21, 22. Scaphander, as Bulla, 26.
[Pl. XXI.] Limnæa 1, 4, 7, 11. Planorbis 18, 24, as complanatus, and in the upper fresh-water formation, all except 9, 11.
[Pl. XXII.] Succinea 1, 3. Conovulus 5, and in the more recent fresh-water deposits, all except 7 and 13 to 16.
[Pl. XXIII.] Helix 19, 22, and upper fresh-water, all except 1, 12, 14, 15, 24, 25, 26.
[Pl. XXIV.] Upper fresh-water deposits, all except 16, 24.