1. Mytilus Magellanicus: same as that found at Valparaiso, and there stated
to be probably distinct from the true M. Magellanicus of the east coast.

2. Venus costellata, Sowerby "Zoological Proceedings."

3. Pecten purpuratus, Lam.

4. Chama, probably echinulata, Brod.

5. Calyptraea Byronensis, Gray.

6. Calyptraea radians (Trochus, Lam.)

7. Fissurella affinis, Gray.

8. Fissurella biradiata, Trembly.

9. Purpura chocolatta, Duclos.

10. Purpura Peruviana, Gray.

11. Purpura labiata, Gray.

12. Purpura buxea (Murex, Brod.).

13. Concholepas Peruviana.

14. Nassa, related to reticulata.

15. Triton rudis, Brod.