Murina bicolor Kuo Haochih 2009

328. Bicolored Tube-nosed Bat Murina bicolor French: Murine bicolore / German: Zweifarbige Rohrennase / Spanish: Ratonero narizudo bicolor Other common names: Yellow-chested Tube-nosed Bat Taxonomy. Murina bicolor Kuo Haochih et al., 2009, “ Taiwan, Nantou County, Renai Township, Taroko National Park, Hehuanshan, 3,020 m.” See M. leucogaster. Monotypic. Distribution. Taiwan. Descriptive notes. Head-body 47-49 mm, tail 41-45 mm, ear 16-4—17- 4 mm, forearm 37-42 mm. Females are reportedly larger than males. Fur is long and woolly; dorsally reddish brown (hairs with black basal half, light gray middle, and orange to dark brown tips, and guard hairs with reddish tips); ventrally yellow (hairs yellow-tipped with dark bases), sometimes with uniformly white or yellowish-white chest. Dorsal fur extends onto base of wings, uropatagium, thumbs, and feet, with well-developed fringe of hairs around margin of uropatagium. Dark face mask around the eyes, muzzle, and lower forehead, and face is furred except long, protuberant nostrils, which are naked. Ears are short and broad with smoothly convex anterior margins, distinct notch on posterior margin, and broadly rounded tip; tragusis long, narrow, and tapering toward pointed tip, with slightly convex anterior margin, concave posterior margin above, slightly convex below, and a basal notch. Wing attaches close to base offirst toe. Compared with the Rufous Tube-nosed Bat (M. leucogaster), upper canine is anteriorly and posteriorly more compressed, and females have longer skull, narrower zygomatic width, narrower braincase, and narrower mastoid width; rostrum is heavily built; sagittal crest is weak or absent; lambdoidal crests are weak. C' is relatively small compared to other large Murina; I? is anteriorly positioned relative to I*; P? is about half the size of P*; mesostyles of M' and M? are moderately developed. Habitat. Found in various kinds of lowland and montane forest, including those dominated by broadleaved trees, planted conifers, mixed forests, or mosaic vegetation with fragments of mixed forest and bamboo. Reported at elevations of 400-3350 m. Food and Feeding. No information. Breeding. A female gave birth to two young inJune; nursing females are known fromJuly. Activity patterns. The Bicolored Tube-nosed Bat roosts in tunnels and abandoned bunkers. One hibernaculum, used annually from November to late March or early April, comprised up to ten individuals in an abandoned bunker at 3340 m. Movements, Home range and Social organization. Bicolored Tube-nosed Bats appear to roost ether solitarily or in small groups of up to ten clustered together. Status and Conservation. Classified as Least Concern on The IUCN Red List. Despiteits fairly restricted range, this species does not seem to face any major threats at present, and may be at least partially adaptable to human changes in the environment. Bibliography. Cheng Hsichi et al. (2017), He Fang etal. (2015), Kuo Haochih (2004), Kuo Haochih et al. (2009), Lee Lingling & Kuo Haochih (2017a), Zeng Xiang et al. (2018).Published as part of Don E. Wilson & Russell A. Mittermeier, 2019, Vespertilionidae, pp. 716-981 in Handbook of the Mammals of the World – Volume 9 Bats, Barcelona :Lynx Edicions on page 908, DOI: 10.5281/zenodo.639775