Alcathoe Whiskered Myotis
Photo © Leonardo Ancillotto
Photo © Leonardo Ancillotto — CC BY 4.0 — Source: iNaturalist #302402281The Alcathoe bat (Myotis alcathoe) is a European bat in the genus Myotis. Known only from Greece and Hungary when it was first described in 2001, its known distribution has since expanded as far as Portugal, England, Sweden, and Russia. It is similar to the whiskered bat (Myotis mystacinus) and other species and is difficult to distinguish from them. However, its brown fur is distinctive and it is clearly different in characters of its karyotype and DNA sequences. It is most closely related to Myotis hyrcanicus from Iran, but otherwise has no close relatives. With a forearm length of 30.8 to 34.6 mm (1.21 to 1.36 in) and body weight of 3.5 to 5.5 g (0.12 to 0.19 oz), Myotis alcathoe is a small bat. The fur is usually reddish-brown on the upperparts and brown below, but more greyish in juveniles. The tragus (a projection on the inner side of the ear) is short, as is the ear itself, and the inner side of the ear is pale at the base. The wings are brown and the baculum (penis bone) is short and broad. M. alcathoe has a very high-pitched echolocation call, with a frequency that falls from 120 kHz…
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