483.

Reddish Myotis

Myotis soror

French: Murin soeur / German: Rotes Taiwan-Mausohr / Spanish: Ratonero rojo de Taiwan

Taxonomy. Myotis soror Ruedi et al, 2015,

“along the ‘water pipe road,” near the Highland Experimental Farm of National Taiwan University, Nantou County, Taiwan ROC (approximate coordinates: 24°05’ N, 121°09’E), at an altitude of 2100 m above sea level.”

Subgenus Myotis; daubentonii species group. Based on limited genetic data, M. soror appearsto besister to M. fraterin a clade including M. daubentonii and M. longicaudatus . Monotypic.

Distribution. Known only from type locality in Nantou County, C Taiwan.

Descriptive notes. Head—-body 48 mm,tail 41 mm, hindfoot 7- 6 mm, ear 11 mm, forearm 42- 1 mm. Pelage of the Reddish Myotis is dense, soft, and relatively long. Dorsal pelage is rich frosted cinnamon-brown (cinnamon brown hairs with lighter golden yellow tips); venteris only a little lighter (hairs brown, becoming lighter near tips, almost creamy). Bare ears and membranes are reddish brown, and face is brownish. Ears are relatively short and broad, with distinct concavity on middle of posterior margins, and inner and outer sides of ears are covered in sparse, cinnamon rufous hairs; tragus is relatively short, with slightly convex anterior margin, small lobe at base of posterior margin that is convex for ¢.50% ofits length, and slightly rounded tip. Wings attach to base of metacarpus near base of outer toes, and feet are robust, with strongly curved claws. Calcar is short, with unkeeled lobe. Skull is angular, with short rostrum and abruptly raised forehead region; lambdoidal crests are visible laterally, but sagittal crest is absent; teeth are robust; C' is longer than P*, with distinct groove along labial edge; P* is small and in tooth row, and P? is extremely small and intruded; lower premolars are in a relatively uncrowded row; and molars are robust but low with ill-defined paraconules.

Habitat. Evergreen temperate forest at an elevation of 2100 m (holotype) but apparently recorded up to 2600 m.

Food and Feeding. No information.

Breeding. Holotype was a post-lactating female captured in early September.

Activity patterns. No information.

Movements, Home range and Social organization. No information.

Status and Conservation. Classified as Data Deficient on The IUCN Red List. The Reddish Myotis is currently known from only a few specimens and is likely a rare montane species. Virtually nothing is known aboutits ecology or threats.

Bibliography. Cheng Hsichi et al. (2017), Ruedi et al. (2015, 2017b).