Family: Body more or less triangular to spatulate; tapered, round-tipped pseudopods.
Genus: Clear pseudopods, formed from clear anterior, more or less broad margin (Illustrated Guide, 1985).
(Test with short neck, round in cross-section; pseudostome oval or polygonal)

M. viridis 5 clips Uruguay, 1999	M. viridis 3 clips Uruguay, 1999
Mayorella sp. 14 clips Uruguay, 1999	Mayorella sp. 19 clips Japan, 1998	Mayorella sp. 5 clips μm Higashi-hiroshima Hirosima, 1998
M. hohuensis 10 clips Japan, 1998	M. hohuensis 8 clips Japan, 1998	Mayorella sp. 4 clips Higashi-hiroshima Hiroshima, 1998
Mayorella sp. 14 clips Tokyo, 1998	Mayorella sp. 6 clips Tokyo, 1998	Mayorella sp. 3 clips Akigase park Saitama, 1998
Mayorella sp. 6 clips Higashi-hiroshima Hiroshima, 1998	Mayorella sp. 6 clips Higashi-hiroshima Hiroshima, 1998	Mayorella sp. 2 clips Kurome river Asaka Saitama, 1999
Mayorella sp. ? or Vexillifera ? 5 clips Japan, 1998	Mayorella sp. ? or Paradermamoeba ? 6 clips Japan, 1998
Mayorella sp. 2 clips xxxx xxxx Pref, 2000	Mayorella sp. 3 clips xxxx xxxx Pref, 2000	Mayorella sp. 2 clips xxxx xxxx Pref, 2000	Mayorella sp. 1 clips xxxx xxxx Pref, 2000
Size marker sp. 1 clips xxxx xxxx Pref, 2000	Mayorella sp. 3 clips xxxx xxxx Pref, 2000