About Sturnira parvidens Goldman, 1917
Sturnira parvidens Goldman, 1917 is a medium-sized bat. It has a head-body length of 6–7 cm (2.4–2.8 in), a weight of 12–19 g (0.42–0.67 oz), and an average forearm length of approximately 41 mm (1.6 in). It has a short, broad head with large eyes and relatively short, rounded ears. Its nose-leaf is comparatively small, with an oval to lanceolate tip. A central pad sits on its lower lip, surrounded by a semi-circular row of wart-like structures. The main wing membrane extends down to the bat's ankles; it has no tail, and only a vestigial tail membrane. Its wings have an aspect ratio of 6 and a wing loading of 12 kg/m², and it has small teeth. Its fur is thick and soft, and may be dark grey, though it is more commonly reddish or yellowish. Males have a distinct yellow patch over the shoulders. The fur on its back is dark brown, with individual hairs bearing three or four color bands. Its belly fur is paler, with tricolored hairs, and its face is brownish-gray. Sturnira parvidens ranges from Sonora in northwest Mexico and Tamaulipas in northeast Mexico, along both the eastern and western coastal slopes of central Mexico, through all of southern Mexico and Central America, reaching as far south as northern Costa Rica. Across this range, it lives in a wide variety of forest types, at elevations up to 2,000 m (6,600 ft) above sea level. No geographic subspecies are currently recognized for this species.
