METACYPRIS ([M. cordata] Brady and Robertson 1870,p.19 
[Cytheridae-Xestoleberinae by Sars 1928,p.248; 
Kloedenellidae, descended from Knoxina, Geisina, 
or Sansabella by Kellett 1943,p.626; Cytheridae-- 
Xestoleberinae by Martin 1940,p.335] Recent, Europe. 
MEZOMPHALUS Zaspelova 1952,p.158,15S, = Mesomphalus Ulrich 
and Bassler 1913, a change of spelling. 
MICA iM. inaequalis Netjkaia,n.sp.] Netjkaia 1952,p.228 
LIncertae sedis by Netjkaia] Ordovician, USSR. 
[Not Mica Budde-Lund 190€,p.2é&1] 
MICROCHEILINELLA [Microcheilus distortus Geis 1932,p.1&2, 
pl.25,f.15a,b.] Geis 1933,p 12, [new name for 
Microcheilus Geis, 1932, Not Kittl 1894. 
Bairdiidae by Geis; Cytherellidae by Bassler and 
Kellett 1934,p.42] Mississippian of Indiana. 
MICROCHEILUS Geis 1932,p.181,1€2, not Kittl 1894 = 
Microcheilinella Geis 1933,p.1l2, new name. 
MICROCOELONELLA [M. scanta] Coryell and Schn 1938,p.597 
[Leperditellidae by C&S; Kloedenellidae- Kloede- 
nellinae by lienningsmoen 1953,p.271] Mississippian 
of West Virginia. 
119 
