64 MARINE SHELLS OF SOUTH AFRICA, 
Myritus PERNA, Linn., Reeve, Conch. Icon. (Mytilus), 
pl. 6, fig. 23.—Port Elizabeth, &e. 
N 
IyTILus EDULIS, Linn., var. M. meridionalis, Krauss, 
Sudafr. Moll. p. 21, pl. 11, fig. 7.—Port Elizabeth, &e. 
MytiLus aFEk, Gmelin, Reeve, Conch. Icon. (Mytilus), 
pl. 2, fig. 3.—Characterised by more or less pronounced brown 
zigzag markings; it is, however, extremely doubtful whether 
this is rightly considered a species distinet from M. perna. 
MyTILUS VARIABILIS, Krauss, Sudafr. Moll. p. 25, pl. 2, 
fig. 3.—Table Bay, Natal and Port Elizabeth. 
MyTILUS MAGELLANICUS, Chemnitz, Reeve, Conch. Icon. 
sp. 22.—A young specimen of this species found on the 
shore at Natal. 
Mopio.a CAPENSIS, Krawss, Sudafr. Moll. p. 20, pl. 2, 
fig. 3.—Knysna River (Krauss). 
Mop10La AURICULATA, Avauss, Sudafr. Moll, pl. 2, fig. 4. 
—Natal (Krauss), Port Elizabeth (Bairstow), I. Anjouan 
(Philippi), Red Sea (Ruppell). 
Moproua CyYLinprica, Arawss, Sudafr. Moll. p. 21, pl. 2, 
fig. 2.—Natal (Krauss). 
Mopiota mucronata, Philippi, Abbild. und Beschr. 
neuer Conchyl., vol. ii. p. 150, pl. 1, fig. 8.—Natal coast 
(Krauss). 
MopIoLa LIGNEA, Reeve, Conch. Icon. (Modiola), pl. 10, 
fig. 58.—Port Elizabeth. An Australian species. 
MopIoLa ELEGANS, Philippi, Reeve, Conch. Icon. sp. 19. 
—Port Elizabeth. Much larger than the typical Indo- 
Pacific form. 
Mopiota preTaGNe, Scacchi, Reeve, Conch. Icon. 
(Modiola), pl. 8, fig. 46.—Port Elizabeth. A Mediterranean 
species. 
MopioLaRIA CUNEATA, Gould, is M. marmorata. 
Moprouaria piscors, Linn., Sowb., Ill. Index of British 
Shells, pl. 7, fig. 13.—Port Elizabeth. A common British 
and European species. 
