RUDDERINA [R. extensa] Coryell and Malkin 1936,p.6 
[Ropolonellidae by C&M; Quasillitidae-Ropolo- 
nellinae by Henningsmoen 1953,p.257,275] Devonian 
of Ontario. 
RUPTIVELUM [Re bacculatum] Kesling and Weiss 1953,pe47 
[Hollinidae by K&W] Devonian, Michigan. 
RUSSIA [Gravia (Russia) unicostata] Polenova 1952,p.86 
[as a subgenus of Gravia: Acronotellidae-Graviinae 
by Polenova] Devonian, USSR. 
RUTIDERMATIDAE Brady and Norman 1896,p.673, a family of 
Myodocopa for the genus Rutiderma. 
RUTIDERMA [R. compressa] Brady and Norman 1896,p.673 
[Rutidermatidae by B&N; Cypridinidae-Philomedinae 
by G. W. Miiller 1912,p.34] Recent, Bay of Biscay. 
RUTTENELLA [R. ovata] Bold 1946,p.84% [Cytheridae-Cytherideinae 
by Van den Bold] Eocene of Bonaire. 
SACCALATIA Kay 1940a,p.2h2, as spelled Saccelatia 5 times 
on pec38, and same 5 times on peeck3 = Saccelatia 
Kay 1940a; corrected by Kay 1940b, p.615. 
SACCELATIA [Aparchites arrectus Ulrich 1894,p.646,pl.43,f-35- 
36] Kay 1940a,p.2h2 (spelled Saccalatia in typo- 
graphical error on this page only; Saccelatia in 
168 
