Pipistrellus stenopterus Dobson 1875

• Main Authors: Don E. Wilson, Russell A. Mittermeier
• Format: Other/Unknown Material
• Language: unknown
• Published: Lynx Edicions 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Mammalia; Chiroptera; Vespertilionidae; Pipistrellus; Pipistrellus stenopterus; Pipistrellus pipistrellus
• Online Access: https://zenodo.org/record/6581219; https://doi.org/10.5281/zenodo.6581219

41. Narrow-winged Pipistrelle Pipistrellus stenopterus French: Pipistrelle a ailes étroites / German: Schmalfliigel-Zwergfledermaus / Spanish: Pipistrela de alas estrechas Other common names: Malayan Noctule Taxonomy. Vesperugo stenopterus Dobson, 1875, “ Sarawak, Borneo,” Malaysia. Pipistrellus stenopterus has been included in Nyctalus and Hypsugo by various authors but is best placed in Pipistrellus based on karyotypic and morphological data. Recent genetic data have placed it as sister to a clade including a few of the Eastern Pipustrellus species (P. coromandra, P. tenwis, P. javanicus, P. paterculus, and P. abramus), and it was placed in its own subgenus, Alionoctula, based on its unique morphology and genetic placement. Based on paraphyly of Pipistrellus as currently recognized, this subgenus eventually might be recognized as a distinct genus. Monotypic. Distribution. Extreme S peninsular Thailand, Peninsular Malaysia, Singapore, Sumatra (including Galang I in the Riau Archipelago), N & W Borneo (including Labuan I), and a single specimen from SW Mindanao, Philippines. Descriptive notes. Head-body 50-6 62-4 mam, tall 36-7-57 mm, car 11.5-16 mm, hindfoot 10-5-12-1 mm, forearm 37-42 mm; weight 13-22 g. The Narrowwinged Pipistrelle is considerably larger than all other species of or and is more Nyctaluslike. Muzzle is broad and thick, and wings are narrow. Pelage is short. Dorsum is dark reddish brown to dark chocolatebrown; venter is slightly paler and grayer. It might be sexually dimorphic, with females being reddish brown and smaller and males more brownish or grayish brown and larger. Ears are of moderate size and somewhat rounded (butstill subtriangular), with broadly rounded tips; tragus is broad, hatchetshaped, and strongly angled forward. Uropatagium extends from calcar to nearly tip oftail; only extreme tip is free. Fifth metacarpal is much shorter than fourth metacarpal, which gives its characteristic narrow wings that differentiate it from other species of Pipistrellus. Baculum is ¢.3-5 mm long ...