INDEX 



157 



Tasnioglossa, 24, 125 



Tanganyicia, 91 



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. 

 Terebra, 24, 63, 102, 132 

 Terebra maculata, xii. 

 Teredinia per sonata, xx. 

 Teredo (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 leporina, xii. 

 Tetrabranchia, 41 

 Thecalia concamerata , 92 

 Theodoxis, 21, 52, 53, 57, 58, 65, 



90, 103 

 Theodoxis zebra, ix. 

 Thorny Oyster. See Spondy- 



lidae. 

 Thracia pubescens, xx. 

 Thyca, 81 



Thyrophorella, 23, 64, viii. 

 Tiedemannia Neapolitana, xxvi. 

 Titiscania, 105 

 Top Shells, 5, 11, 54 

 Tornatina, 19 

 Tomatina voluta, xii. 

 Torsion of gastropod body, 16, 



iv. 

 Toxoceras annulare, xxii. 

 Toxoglossa, 24, 125 

 Trachyglossa, 43 

 Trichocyclus Dumerili, xxvi. 

 Trichotropis, 63 

 Tridacna, 64, 74, 80, 106, 113, 



141 

 Trigonia, 11 8, 119 



Trigonia costata, xviii. 

 Trigonia pectinata, xxx. 

 Trigoniidae, 46 

 Trigonochlamys, 106 

 Trivia Europcea, ii. 

 Trochidse, 5, 46, 54, 103 

 Trochonema, 45 

 Trochotoma conuloides, vii. 

 Trochus, 11 

 Trophon, 63 



Trophon Geversianus, xi. 

 Truncatella, 57, 60 

 Turbinella, 104, 141 

 Turbinella pyrum, xi. 

 Turbinidse, 5, 45, 54, 103 

 Twr&o fluctuates, viii. 

 Turbo marmoratus, ix. 

 Turbo neritoides, 53 

 Turbo sarmaticus, viii. 

 Turbonilla, 19 

 Turbonilla dipsycha, iv. 

 Turricula vulpecula, xi. 

 Turrilites costatus, xxii. 

 Turritella imbricata, x. 

 Typhobiidae, 58 



Umbilicus, 19 



Umbo, 30 



Umbonium vestiarium, ix. 



XJmbraculum, 12 



C/w'o, 5, 48, 53, 65, 92, 114 



C/mo batavus, 88 



£/?Mo littoralis, xviii. 



£7«/0 pictorum (Painters' Mussel), 



89, xv. 

 t/;»'o tumidus, 88 

 Unionidae (Freshwater Mussels), 



5, 58, 80, 82, 97 

 Urocoptidae, 98 

 Urocoptis cylindrus, xiii. 



Vaginella depressa, xxvi. 

 Valvata, 48, 129 

 Valvata cristata, x. 

 Valvata, piscinalis y x. 

 Valvatidae, 58 

 Vanicoro cancellata, x. 

 Varix and Varices, 20 

 Vasum comigerum, xi. 



