PLANCHE IV

Phasianella Munieri, C. V.

Phasianella brevis, C. Y.

Margarita Lacazei, C. V.

Margarita Lacazei, var. nigricans, C. V.

Schismope Mouchezi, C. V

Fissurella australis, Krauss.

. Fissurella mutabilis, Reeve.

. Patella depsta, Reeve.

. Chiton Constanti, C. V.

. Chiton Bergoti, C. V,

. Helix.... (sp.)?

Marinula nigra, Ph.

Marinula Maindroni, C. V.

. Siphonaria Macgillivrayi, C, V.

Siphonaria Macgillivrayi, var, lata, C, V., île Amsterdam. Bulla Divæ, C. V. ; d