34 MARINE SHELLS OF SOUTH AFRICA. 
Cyprma (Trivia) oniscus, Lamarck, Thes. Conch. vol. iv. 
pl. 324, figs. 416, 417. A smooth-backed variety of this 
species has often been mistaken for C. ovula, from which it 
is constantly distinguished by being when adult ribbed at 
the base.—Port Elizabeth and Cape coast. 
Cypr@®a (Trivia) ovuLA, Lamk., Thes. Conch. vol. iv. 
pl. 324, figs. 410, 411.—Port Elizabeth and Cape coast. 
Cyprma (Trivia) costata, Gmelin, Thes. Conch. vol. iv. 
pl. 324, figs. 414, 415=C. rosea, Wood=C. carnea, Gray ; 
Sowb. Conch. Illustr. fig. 147.—Cape coast, very rare 
(Krauss). I have not met with this species from Port 
Elizabeth. 
Cypr@a (TRIVIA) FoRMOSA, Gaskoin, Thes. Conch. vol. iv. 
pl. 328, figs. 518*, 519.—Cape coast and Port Elizabeth. 
CypPr@A (TRIVIA) PELLUCIDULA, Gaskoin, Thes. Conch. 
vol, iv. pl. 327, figs. 497-499.—Port Elizabeth. 
Cypr®A (TRIVIA) VESCICULARIS, Gaskoin, Thes. Conch. 
vol. iv. pl. 324, figs. 412, 413.—Port Elizabeth. Rarely 
found in good condition. This species is like a miniature 
C. oniscus, but more finely ribbed. 
OvuLa sPELTA, Linn., Thes. Conch. vol. i. pl. 100, 
figs. 63, 64.—Port Elizabeth, Cape coast. Known as a 
Mediterranean species. 
OvuLa BrRrostris, Linn., Sowerby, Thes. Conch. vol. i. 
pl. 100, figs. 65, 66.—Port Elizabeth. Of wide distribution. 
Specimens have been found at Mauritius, Ceylon, Singa- 
pore, Hong Kong, Japan, &e. 
OvuLa caRNEA, Poiret, Thes. Conch. vol. i. pl. 101, 
fig. 77.—A large, light variety of this common Medi- 
terranean species found at Port Elizabeth. 
OVULA AURANTIA, Sowerby, pl. 1, fig. 26; Journ. of 
Conch. 1889, vol. vi. p. 11, pl. 1, fig. 15.—Port Elizabeth 
(Bairstow). 
CANCELLARIA FOVEOLATA, Sowerby, Thes. Conch. vol. i. 
pl. 93, figs. 30, 31.—Port Elizabeth. The species varies in 
colour from nearly white to dark brown or nearky black. 
