Long-tailed Myotis

The long-tailed myotis, Myotis longicaudatus, is a vesper bat of northern and eastern Asia. Its tail is approximately as long as its head and body together, and its hind legs are slightly longer than in many other Myotis. Korean and older Russian literature sometimes treated longicaudatus as a subspecies of Myotis frater, but molecular phylogenetic work supports recognition as a distinct species with two named subspecies (Jo et al. 2018; Wikipedia, general species account).

The Korean mammal review applies M. longicaudatus to populations in Korea, the Ussuri region and Russia's Altai Mountains. Beyond distribution, proportions and taxonomic history, the opened species sources do not provide enough evidence for a dependable Korean account of diet, roosts, echolocation, breeding or seasonal movement. These fields remain unstated. As with other mouse-eared bats, a photograph alone may not establish identity, so well-documented measurements or specialist evidence are preferable (Jo et al. 2018).