Geological Observations on South America

by Charles Darwin

Pyrula : 34 (and 36 30 at Concepcion) : 5 Payta.

Fusus : 30 and 43 30 : 23 Mexillones; reappears at the St. of Magellan.

Pleurotoma : 34 to 43 30 : 2 18 St. Elena.

Terebra : 34 : 5 Payta.

Sigaretus : 34 to 44 30 : 12 Lima.

Anomia : 30 : 7 48.

Perna : 30 : 1 23 Xixappa.

Cardium : 30 to 34 (and 36 30 at Concepcion) : 5 Payta.

Artemis : 30 : 5 Payta.

Voluta : 34 to 44 30 : Mr. Cuming does not know of any species living on the west coast, between the equator and latitude 43 south; from this latitude a species is found as far south as Tierra del Fuego.