This bat is confirmed from Barbados. The back fur of the examined specimens has dark roots and tips ranging from cinnamon to dark brown.
The Barbados specimens have silky fur. Their backs are two-toned, with dark roots and tips ranging from cinnamon to dark brown; the underside has dark-brown roots and pale buff tips.
The Barbados survey records M. nyctor near caves, gullies, and rocky outcrops with larger trees. Researchers observed bats chasing insects among trees in Jack-in-the-Box and Welchman Hall Gullies.
An extinction-risk assessment has not been added yet.