Sanborn's squirrel explained

Sanborn's squirrel (Sciurus sanborni) is or was a little known tree squirrel described in 1944 from the skin and skeleton of a single female specimen collected in Peru in 1941.^[1] Subsequently, over the proceeding years only a handful of either specimens were collected, or observations were recorded, in the regions of Madre de Dios and northern Puno in Peru, and Pando department in Bolivia (single sighting, Conservation International, 1992).^[2] The 2019 IUCN assessment describes it as endemic to Peru. In 2015 this taxon was synonymised with Notosciurus pucheranii ssp. boliviensis.^[3] Its habitat is tropical dry broadleaf forests at elevations up to 570 m. It is considered possibly rare and potentially vulnerable to deforestation, but its population trend is not established.^[4]

Notes and References

1. Osgood . Wilfred Hudson . 1944 . Nine new South American rodents . Publication. Field Museum of Natural History. Zoological Series . 29 . 13 . 191–192 . 10.5962/bhl.title.3829 . 11 August 2018. free .
2. Sciurus sanborni Osgood, 1944 . . 2017 . GBIF Backbone Taxonomy - Checklist dataset . GBIF Secretariat . 10.15468/39omei . 11 August 2018.
3. Book: de Vivo, Mario . Carmignotto . Ana Paula . January 2015 . Family Sciuridae G. Fischer, 1817 . https://www.researchgate.net/publication/273129157 . Patton . James L. . Pardiñas . Ulyses F.J. . D'Elía . Guillermo . Mammals of South America Volume 2, Rodents . 1 . Chicago . University of Chicago Press . 41 . 10.7208/chicago/9780226169606.001.0001 . 978-0226169576 . 11 August 2018.
4. Mammalian Species. 49. 952. 93–96. 19 August 2017. Palmer. R.R.. Koprowski. J.L.. Sciurus sanborni . 10.1093/mspecies/sex010. free.