Talabrica (thickshell-clams)
Talochlamys (scallops)
Tamanovalva (sea-slugs)
Tambja (sea-slugs)
Tanea (necklace-shells)
Tasmatica (necklace-shells)
Tasmeuthria (whelks)
Tatea (hydrobias)
Tawera (venuses)
Tectonatica (necklace-shells)
Tegulaherpia (aplacophorans)
Tellinella (tellins)
Tenagodus (worm-shells)
Terebra (augers)
Teredo (shipworms)
Teretriphora (sinistral-creepers)
Tergipes (sea-slugs)
Tetronychoteuthis (squids)
Teuthowenia (squids)
Thalassocyon (fig-shells)
Thalotia (kelp-shells)
Theora (semeles)
Thieleella (slit-shells)
Thordisa (sea-lemons)
Thracia (thracias)
Thracidora (thracidoras)
Thraciopsis (thracias)
Thyasira (thyasiras)
Timoclea (venuses)
Todarodes (squids)
Tomopleura (false-turrids)
Tonna (tun-shells)
Tornatina (peanut-shells)
Trapania (sea-slugs)
Trichomya (mussels)
Tricolia (pheasant-shells)
Triforis (false-creepers)
Trimusculus (lung-limpets)
Trinchesia (sea-slugs)
Tritonia (sea-slugs)
Truncatella (truncatellas)
Tubercliopsis (false-creepers)
Tucetona (dog-cockles)
Tugali (notch-limpets)
Tularia (sea-slugs)
Turbo (turbans)
Turbonilla (pyramid-shells)
Turrella (false-turrids)
Tylodina (umbrella-shells)
Typhis (murex-shells)