Description
The Mauritian tomb bat is distinguished from other species of bat by a completely white ventral area. The dorsal surface of T. mauritianus is a mottled color consisting of several shades of brown, gray, and white, which creates a grizzled "salt and pepper" appearance. Its fur is sleek and short, and the wing membranes are beige and primarily translucent. The wings are long, narrow, and shorten when not in flight in a way that facilitates crawling, a trait unique to this genus. Sexes are similar in color and size. Adults are generally lighter in color than juveniles, who have more of a gray hue. This species has a conically shaped face, which is covered in a thin layer of hair. The area below and in front of the eyes is bare, and the frontal portion of the face is sunken around the eyes. The eyes are large (2–3 mm). The ears are triangular-shaped, erect, and have rounded edges. The inner margins of the ear lack papillae, which is the inner sensory surface of the bat's ear. One of the larger species in the Microchiroptera suborder, fully grown adults weigh anywhere from 25 to 36 grams, with its forearm measuring 58 to 64 millimeters. The total length is from 100 to 110 millimeters.
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