INDEX 
Tenioglossa, 24, 125 
Tanganyicia, gt 
Tapes 54 
Taxodont, 32 
Tectibranchia, 25, 105 
Teleodont, 32 
Tellina, 108 
Tellina lingua-felis, xviii. 
Temperature, ranges endured, 
71,72 
Tenagodes, 98 
Tenagodes australis, v. 
Terebellum subulatum, x. 
Tevebra, 24, 63, 102, 132 
Terebva maculata, xii. 
Tevedinia personata, xx. 
Tevedo (Ship-worm), 32, 33, 35, 
74, 89, 92, 119, 144 
Teredo Norvegica, Xx. 
Terrestrial Molluscs, 60 
Testacella, 60, 70 
Testacella haliotidea, xiii. 
Testacella scutulum, xiv. 
Tethys lepovina, xii. 
Tetrabranchia, 41 
Thecalia concamerata, 92 
Theodoxis, 21, 52, 53, 57,58, 65, 
90, 103 
Theodoxis zebra, ix, 
Thorny Oyster, See Spondy- 
lidze. 
Thracia pubescens, xx, 
Thyca, 81 
Thyvophorelia, 23, 64, viii. 
Tiedemannia Neapolitana, xxvi. 
Titiscania, 105 
Top Shells, 5, £1, 54 
Tornatina, 19 
Tornatina voluta, xii. 
Torsion of gastropod body, 16, 
iv. 
Toxocevas annulave, xxii. 
Toxoglossa, 24, 125 
Trachyglossa, 43 
Trichocyclus Dumervili, xxvi. 
Trichotropis, 63 
Tridacna, 64, 74, 80, 106, 113, 
141 
Trigonia, 118, 119 
157 
Trigonia costata, xviii. 
Trigonia pectinata, xxx. 
Trigoniide, 46 
Trigonochlamys, 106 
Trivia Europea, ii, 
Trochidz, 5, 46, 54, 103 
Tvochonema, 45 
Trochotoma conuloides, vii. 
Trochus, 11 
Tvophon, 63 
Trophon Geversianus, xi, 
Truncatella, 57, 60 
Turbinella, 104, 141 
Turbinella pyrum, xi. 
Turbinide, 5, 45, 54, 103 
Turbo fluctuatus, viii. 
Turbo mayrmoratus, ix. 
Turbo nevitoides, 53 
Turbo sarmaticus, viii. 
Turbonilla, 19 
Turbonilla dipsycha, iv. 
Turricula vulpecula, xi. 
Turvilites costatus, xxii. 
Turvitella imbricata, x. 
Typhobiidz, 58 
Umbilicus, 19 
Umbo, 30 
Umbonium vestiavium, ix. 
Umbraculum, 12 
Unio, 5, 48, 53, 65, 92, 114 
Unio batavus, 88 
Unio littoralis, xviii. 
Unio pictorum (Painters’ Mussel), 
89, xv. 
Unio tumidus, 88 
Unionidz (Freshwater Mussels), 
5, 58, 80, 82,97 
Urocoptide, 98 
Urocoptis cylindrus, xiii. 
Vaginella depressa, xxvi. 
Valvata, 48, 129 
Valvata cristata, x. 
Vaivata, piscinalis, x. 
Valvatidze, 58 
Vanicovo cancellata, x. 
Varix and Varices, 20 
Vasum cornigerum, xi. 
