Richmond's squirrel

It is thought to be absent from the Pacific coast, although specimens have been collected near there at the Toro rapids on the Río San Juan near Lake Nicaragua.

[3] It has been collected in trees along streams in pastures, cacao plantations, and secondary woodlands in the 1960s, and possibly old growth forests in the 1890s.

[1] It forages on the ground and in the understory and is seldom seen in the canopy, more often on the trunk and lower branches according to Jones Jr. & Genoways in 1971.

[6] The breeding season is long, from at least February to September,[6] and litters of mostly three, sometimes two, young were reported by Jones Jr. & Genoways based on six gravid females.

[4][6] Genetic studies indicate is likely conspecific with S. granatensis,[1] which has been suspected by most workers on it since it was first named (i.e. Nelson, Allen, Jones Jr. & Genoways, Koprowski & Roth).

[6] The IUCN stated in 2008 that deforestation is a major threat to this species,[1] likely echoing Jones Jr. & Genoways in 1971.