Schemes including Phoca vitulina

• IUCN Red List of Threatened Species. Version 2012.1 (17013) Phoca vitulina
• IUCN Red List of Threatened Species. Version 2012.2 (17013) Phoca vitulina
• CONABIO (185723MAMIFB501112) Phoca vitulina
• NatureServe Explorer: An online encyclopedia of life. Version 7.1 (ELEMENT_GLOBAL.2.104705) Phoca vitulina
• IUCN Red List of Threatened Species. Version 2014.3 (17013) Phoca vitulina
• GBIF (2434793) Phoca vitulina