Myotis macrodactylus

• 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; Myotis; Myotis macrodactylus; Sakhalin
• Online Access: https://zenodo.org/record/6577962; https://doi.org/10.5281/zenodo.6577962

476. Big-footed Myotis Myotis macrodactylus French: Murin macrodactyle / German: Ostasiatische Wasserfledermaus / Spanish: Ratonero macrodactilo Other common names: Japanese Large-footed Bat Taxonomy. Vespertilio macrodactylus Temminck, 1840, “Le Japon [= Japan].” Subgenus Myotis; macrodactylus species group. See M. petax. Myotis macrodactylus has been treated as a subspecies of M. capaccinii, but its species status is supported by morphology and genetic data. Three subspecies recognized. Subspecies and Distribution. M.m.macrodactylusTemminck,1840—NEChina,N,SKoreanPeninsula(includ-ingJejuI),andmostofJapan(includingSado,Oki,Tsuslima,lk,Goto,Osumi,andAmami-OshimaIs). M.m.continentalisTiunov,1997—RussianFarEast. M. m. insularis Tiunov, 1997 — S Sakhalin I. Descriptive notes. Head—body 40-71 mm, tail 29-49 mm, ear 12-16- 2 mm, hindfoot 9-13 mm, forearm 33-642 mm; weight 6-8 g. Fur of the Big-footed Myotis is soft and short. Dorsal pelage is frosted dark grayish brown (hairs with dark blackish brown bases and glossy light grayish brown tips); venteris paler grayish but becomes more yellowish white toward abdomen and groin. Bare parts of ears, face, and membranes are pale blackish brown. Ears are slender and moderately long, with rounded tips and smoothly outturned central anterior margins; they are concave up to one-third of posterior margins and convex on lower one-third of posterior margins. Tragus is narrow and taller than one-half the ear length, being widest at base, crescent-shaped, and pointed at tip. Wings attach to ankle, uropatagium is covered in sparse downy hair, and posterior border is fringed with fine hair. Baculum is generally Yshaped, barely tapering toward broadly roundedtip; venteris deeply concave along entire length; and base is bifurcated. Skull is robust and large, with slightly convex braincase; sagittal and lambdoidal crests are weakly developed; rostrum is short and low; forehead rises abruptly from rostrum; C' is tall; P? is very small and in tooth row; C, is relatively low; and P, is small ...