# Sciurus niger cinereus

> subspecies of mammal

**Wikidata**: [Q5254271](https://www.wikidata.org/wiki/Q5254271)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Delmarva_fox_squirrel)  
**Source**: https://4ort.xyz/entity/sciurus-niger-cinereus


## References

1. Mammal Species of the World (Third edition)
2. Squirrels of the World
3. Integrated Taxonomic Information System
4. Encyclopedia of Life
5. Global Biodiversity Information Facility
6. Environmental Conservation Online System
7. KBpedia
8. Evolution and spectral tuning of visual pigments in birds and mammals
9. CalPhotos