beast, bat:2

Argent, a sword gules between in chief two reremice displayed sable. Donnchadh Kethe (3/2001 Caid)

Argent, a sword inverted between two reremice displayed sable. William the Sinister (12/1998 Arte)

Argent, on a bend purpure between a reremouse sable and a reremouse azure three mullets argent. Benusch Rickher (8/2007 Midd)

Argent, on a chevron gules between two reremice and a raven close sable three scourges in chevron handles to sinister argent. Ciar O Byrne (12/2001 Atla)

Azure, a garb and on a chief Or two reremice sable. Branwen le Baxtere (3/2006 Anst)

Gules, a chevron argent between two reremice and a mallet Or. Alleyn of Kent (4/1996 West)

Or, on a saltire between in pale two reremice displayed sable, two halberds in saltire argent. Gregor Omolegane (2/1998 Midd)

Per chevron ployé vert and argent, two bats and a crequier counterchanged. Jarvis Riley (11/2011 Atla)

Per chevron ployé vert and argent, two bats argent and a rowan tree eradicated proper fructed gules. Jarvis Riley (11/2011 Atla)

Per fess argent and sable, two reremice counterchanged. Diana the Dismal (7/1994 West)

Per pale gules and sable, a catamount rampant guardant Or, sustaining above its head a rapier fesswise reversed argent, in chief two reremice Or. Tomas Alvarez (1/2005 AnTi)

Per pale indented azure and Or, in dexter a candle argent, enflamed proper, in sinister two Big Brown bats displayed in pale proper. [Eptesicus spp.] Katrina de La Rochelle (8/1983 Aten)

Per saltire azure and sable, in pale two reremice and in fess two decrescents argent. Ingunn of Wyrmgeist (2/2000 Meri)

Purpure, on a pale between two reremice in bend argent, a reremouse purpure. Ástríðr Grímsdóttir (2/2008 Arte)

Quarterly ermine and gules, two reremice ermine. Antoine d'Aubry (8/1995 East)

Quarterly Or and sable, two bats Or within a bordure engrailed counterchanged. Jakub z Prahy (8/2006 Meri)

(Tinctureless) A quarter-sun saltirewise illuminated in chief surmounted by a crowned scepter palewise between two bats displayed grasping a scroll folded nebulywise to base inscribed "SEMPER LITTERIS MANDATE", overall two straight trumpets in saltire. Heralds' Seals: Vesper Principal Herald (8/1979)