Bats
Males of Racey's pipistrelle bat have a long, straight penis with a notch between the shaft and the narrow,
egg-shaped glans penis.
Near the top, the penis is haired, but the base is almost naked. In the baculum (penis bone), the shaft is long and narrow and slightly curved.[84] The length of the penis and baculum distinguish P. raceyi from all comparably sized African and Malagasy vespertilionids.[85] In males, penis length is 9.6 to 11.8 mm (3⁄8 to 15⁄32 in) and baculum length is 8.8 to 10.0 mm (11⁄32 to 13⁄32 in).[86]
Copulation by male greater short-nosed fruit bats is dorsoventral and the females lick the shaft or the base of the male's penis, but not the glans which has already penetrated the vagina. While the females do this, the penis is not withdrawn and research has shown a positive relationship between length of the time that the penis is licked and the duration of copulation. Post copulation genital grooming has also been observed.[87]