Esquemas que incluyen a Sciurus niger

• IUCN Red List of Threatened Species. Version 2012.1 (20016) Sciurus niger
• IUCN Red List of Threatened Species. Version 2012.2 (20016) Sciurus niger
• CONABIO (185286MAMIFB501112) Sciurus niger
• NatureServe Explorer: An online encyclopedia of life. Version 7.1 (ELEMENT_GLOBAL.2.105485) Sciurus niger
• IUCN Red List of Threatened Species. Version 2014.3 (20016) Sciurus niger
• GBIF (5219683) Sciurus niger