ROPOLONELLIDAE Coryell and Malkin 1936,p.6, a family to 
include Ropolonellus, Rudderina, -Luglyphella, 
and Bufinae 
ROPOLONELLINAE Henningsmoen 1953, a reduction of Coryell 
and Malkin's family to a subfamily of Quasilli- 
tidae, for the genera Ropolonellus, Euglyphella, 
Rudderina, and Plagionephrodes. 
ROPOLONELLUS [P. papillatus] Van Pelt 1933,p.339 [Thlip- 
suridae by Van Pelt; Ropolonellidae by Coryell 
and Malkin 1936,p.6; Quasillitidae-Ropolonellinae 
by Henningsmoen 1953,pe257,260,275] Devonian, 
Michigan. 
ROSTOCYPRINAE Anderson 1939,pe293, a subfamily of Cypridae, 
to include Cypridea, Cyamocypris, Langtonia, 
Morinina, Ulwellia. Not named in accordance with 
RULES, as not based on a genus with similar name. 
= Cyprideinae Martin 1940,p.280,2&1. 
ROTHELLA [Dizygopleura recta Roth 1929d,p.3h4, pl.36,f.Sa-c] 
Wilson 1935,pe643 [Thlipsuridae by Wilson] 
Devonian, Oklahoma. 
ROUNDYELLA [R. simplicissimus Knight 1928,p.266,pl.32,f. 
lla-d] Bradfield 1935,p.66 [Kirkbyidae by Brad- 
field] Pennsylvanian, Missouri. 
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