WAYLANDELLA [W. spinosa] Coryell and Billings 1932,p.175 
{[Bairdiidae by C&B] Pennsylvanian, Texas. 
WELLERIA [W. obliqua] Ulrich and Bassler 1923a,p.307 
[Zygobolbidae-Kloedeninae by Bassler and Kellett 
1934,pe492; Beyrichiidae-Beyrichiinae by 
Henningsmoen 1953,p.238,269] Silurian, West 
Virginia. 
WHIPPLELLA (W. cuneiformis] Holland 1934,p.343 [Aparchitidae 
by Holland; Primitiidae by Agnew 192, p.760; 
Cypridae by Scott 1944,p.l42 = Carbonita by 

Cooper 1946,p.66] Permian, Pennsylvania. 
WINCHELLATIA [W. longispina] Kay 1940a,p.253 [Primitiidae-- 
Eurychilininae by Kay; Hollinidae-Ctenentominae 
by Schmidt 1941,p.343 Sigmoopsiidae-?Sigmoopsiinae 
by Henningsmoen 1953,p.207,212,236,266] Ordovician, 
Towae 
WORKMANELLA [W. distincta] Croneis and Gale 1939,p.277 
[Kirkbyidae by C&G; = Tetrasacculus by Cooper 
1941,p.63] Mississippian of Illinois. 
XENOCYTHERE [Cythere cuneiformis Brady 1868b,p.404,pl.31, 
f.47-54)] Sars 1925,p.179 [Cytheridae-Cytherinae 
by Triebel 1949,p.186] Recent, North Atlantic. 
193 
