The minute tuco-tuco is a subterranean rodent of the southern Brazilian coastal plain. Populations in sandy fields beside dunes are described as typically brown.
Populations in sandy fields beside the dunes typically have brown fur. A study reported an association between coat shade and soil color.
This species is a subterranean tuco-tuco. Researchers compared its habitat with that of another tuco-tuco, but competition was not established as the cause of the differences.
An extinction-risk assessment has not been added yet.