La Plata-dolfijn (Dutch)
Langsnuit gewone dolfijn (Dutch)
Langsnuitdolfijn (Dutch)
Largha zeehond (Dutch)
Larga seal (English)
Leopard seal (English)
Long-beaked common dolphin (English)
Long-finned pilot whale (English)
Longman's beaked whale (English)
Lamantin d'Afrique (French)
Lamantin de l'Amazonie (French)
Lamantin des Caraïbes (French)
Léopard de mer (French)
Lion de mer d'Amérique du Sud (French)
Lion de mer d'Australie (French)
Lion de mer de Californie (French)
Lion de mer de Nouvelle-Zélande (French)
Lion de mer de Steller (French)
Loutre de mer (French)
Loutre de mer d'Amérique du Nord (French)
León marino de Nuevo Zelandia (Spanish)
Lobo común (Spanish)
Lobo fino antartico (Spanish)
Lobo fino austral (Spanish)
Lobo fino de Australia (Spanish)
Lobo fino de Galapagos (Spanish)
Lobo fino de Guadalupe (Spanish)
Lobo fino de Juan Fernandez (Spanish)
Lobo fino de Nueva Zelandia (Spanish)
Lobo fino de subantarctico (Spanish)
Lobo fino del norte (Spanish)
Lobo marino de Australia (Spanish)
Lobo marino de California (Spanish)
Lobo marino de dos pelos de Sudafrica (Spanish)
Lobo marino de Steller (Spanish)