CYATHUS [C. ulrichi] Roth and Skinner 1930,p.347 [Aparchitidae 
by R&S; Leperditellidae by Bassler & Kellett 1934, 
peed; Beyrichiacea of uncertain family by 
Henningsmoen 1953,pe273] Pennsylvanian, Colorado. 
CYCLAS [Used by Eichwald 18&57,p.307 thus: Cytherina (Cyclas) 
eos; Permian, Russia.] Not Cyclas Lamarck (1798) 
Encye Meth. (Tabl. vers) pl.301; 1799, mem.soc. 
hist. nat., Paris, Sh, Moll. by Neave 1939, voll, 
pe91h. 
CYCLASTEROPE [C. hendersoni,n.espe, and C. orbicularis, n-esp.] 
Brady 1897, p85 [Cypridinidae by Brady; Asteropidae 
by Skogsberg 1920,p.542 - who designated C. 
hendersoni genotype] Recent, Madras Harbour. 
CYCLOCYPRIA {C. kincaidia] Dobbin 1941,p.235 ["intermediate 
form between Cyclocypris and Cypria™" by Dobbin] 
Recent, Washington. 
CYCLOCYPRIDES Sars 1925,p.89, a Group of Cypridae-Cyprinae 
for Cyclocypris and Cypria. 
CYCLOCYPRIDINAE Kaufmann 1900a,p.107; 1900b, p.319-321, 
Subfamily of Cyprididae to include: Cyclocypris, 
Cypria, and Physocypria. 
CYCLOCYPRINAE Hoff 1942,p.100,101, change in spelling of 
Cyclocypridinae. 
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