Labellinacea, Genus – synonym of Euspira, Genus
Laciolina, Genus – synonym of Tellina, Genus
Laevipatella, Genus – synonym of Patella, Genus
Lafontia, Genus – synonym of Limapontia, Genus
Lamarckia, Genus – synonym of Rissoa, Genus
Lamellibranchia, Classis – synonym of Bivalvia, Classis
Lamellidoris, Genus – synonym of Onchidoris, Genus
Lamoniplax, Genus – synonym of Hanleya, Genus
Lanciella, Genus – synonym of Alvania, Genus
Lanistes, Genus – synonym of Musculus, Genus
Lanistina, Genus – synonym of Musculus, Genus
Lanistria, Genus – synonym of Musculus, Genus
Lavigno, Genus – synonym of Scrobicularia, Genus
Lavignon, Genus – synonym of Scrobicularia, Genus
Lavignona, Genus – synonym of Scrobicularia, Genus
Lavignonus, Genus – synonym of Scrobicularia, Genus
Laxicava, Genus – synonym of Hiatella, Genus
Leda, Genus – synonym of Nuculana, Genus
Ledaspina, Genus – synonym of Nuculana, Genus
Ledina, Genus – synonym of Nuculana, Genus
Leionucula, Genus – synonym of Nuculoma, Genus
Leiostraca, Genus – synonym of Eulima, Genus
Lembulis, Genus – synonym of Nuculana, Genus
Lembulus, Genus – synonym of Nuculana, Genus
Lepidopleuridae, Familia – synonym of Leptochitonidae, Familia
Leptaxinus, Genus – synonym of Thyasira, Genus
Leptochitona, Genus – synonym of Lepidochitona, Genus
Leptum, Genus – synonym of Lepton, Genus
Lestoteuthis, Genus – synonym of Gonatus, Genus
Leuconia, Genus – synonym of Auriculinella, Genus
Leucopepla, Genus – synonym of Auriculinella, Genus
Leucophytia, Genus – synonym of Auriculinella, Genus
Leufroyia, Genus – synonym of Raphitoma, Genus
Liavenustia, Genus – synonym of Rissoa, Genus
Lilacinia, Genus – synonym of Rissoa, Genus
Limaea, Genus – synonym of Limea, Genus
Limatulella, Genus – synonym of Limea, Genus
Limecola, Genus – synonym of Macoma, Genus
Limoarca, Genus – synonym of Limea, Genus
Limula, Genus – synonym of Limatula, Genus
Lineotoma, Genus – synonym of Raphitoma, Genus
Liocardium, Genus – synonym of Laevicardium, Genus
Lionucula, Genus – synonym of Nuculoma, Genus
Liotellina, Genus – synonym of Tellina, Genus
Liriope, Genus – synonym of Tritonia, Genus
Lirobittium, Genus – synonym of Bittium, Genus
Lirodobankia, Genus – synonym of Bankia, Genus
Lissospira, Genus – synonym of Skenea, Genus
Listera, Genus – synonym of Scrobicularia, Genus
Listera, Genus – synonym of Solen, Genus
Livorniella, Genus – synonym of Microhedyle, Genus
Lobaria, Genus – synonym of Philine, Genus
Lolimnites, Genus – synonym of Ommastrephes, Genus
Lophochiton, Genus – synonym of Lepidochitona, Genus
Lophyropsis, Genus – synonym of Leptochiton, Genus
Lorabela, Genus – synonym of Oenopota, Genus
Loripedes, Genus – synonym of Loripes, Genus
Loripoderma, Genus – synonym of Loripes, Genus
Lovenella, Genus – synonym of Cerithiella, Genus
Loxostoma, Genus – synonym of Rissoa, Genus
Lucapina, Genus – synonym of Diodora, Genus
Lucinida, Genus – synonym of Loripes, Genus
Lucinopsis, Genus – synonym of Mysia, Genus
Lunatia, Genus – synonym of Euspira, Genus
Lutricola, Genus – synonym of Scrobicularia, Genus
Lyromangelia, Genus – synonym of Mangelia, Genus