Hypsugo vordermanni

Descriptive notes. Head-body 50 mm (type specimen), tail 13 - 7 - 15 - 1 mm (32 mm in type specimen), ear 8 - 0 - 13 - 3 mm, hindfoot 5 - 7 mm, forearm 30 - 5 - 33 mm; weight 4 - 5 g. Dorsal pelage of Vordermann’s Pipistrelle is reddish brown (bases of hair dark); ventral pelage is a little lighter. Ears are comparatively long, broad, and subtriangular, with broadly rounded tip; tragusis short, broad, and curved forward. Wing membranes are translucent white with brown tinge, and attach to base of toe. Tail extends a little past uropatagium, and calcar has distinctive but narrow lobe. Skull is small and rather broad (longer and larger than in the Big-eared Pipistrelle, Hypsugo macrotis); rostrum is short and premaxillae are shortened; braincase is rounded and inflated anteriorly, forming shallow frontal depression (almost evenly sloped); zygomatic arches are moderately developed with slight postorbital projection; basioccipital pits are deep and well developed. C' is slender and unicuspid; P * is minute and displaced inwardly, allowing C' and P * to touch; upperincisors are almost in a straight line; I * has a weakly defined second cusp; I’ is about two-thirds the height of I * and has weak lateral cusps; lower incisors are slightly imbricated; I, is slightly wider than I with I, even wider; and P, is about one-half the height and area of PP,

Sumber: Vespertilionidae