Myotis mystacinus & Myotis bechsteinii
British mammals /

Date between 1920 and 1921
Source https://www.biodiversitylibrary.org/page/48418496#page/58/mode/1up
Author Archibald Thorburn
Source: https://commons.wikimedia.org/wiki/File%3AFaune_des_vert%FF%FFbr%FF%FFs_de_la_Suisse_%28Pl._II%29_%287979670768%29.jpg


Whiskered Bat

The whiskered bat (Myotis mystacinus) is a small European bat with long fur. Although uncommon, Myotis mystacinus is often found around human habitation and around water. The frequencies used by whiskered bats for echolocation are 34–102 kHz, have most energy at 53 kHz, and have an average duration of 3.0 ms. Order: Chiroptera > Family: Vespertilionidae > Genus: Myotis > Species: Myotis mystacinus


Bechstein's Bat

Bechstein's bat (Myotis bechsteinii) is a species of vesper bat found in Europe and western Asia, living in extensive areas of woodland. Bechstein's bat is a medium-sized and relatively long-eared bat. The adult has a long, fluffy fur which is reddish-brown above and gray-white below. It has a pinkish face, and its ears are long and broad. The wings are dark brown and rather broad, with the membrane attached to the base of the feet. Order: Chiroptera > Family: Vespertilionidae > Genus: Myotis > Species: Myotis bechsteinii