Pelagic and deep sea bottom crustaceans. Top: Gnathophausia sp. from Gulf of Gu
inea, 4000 meters. Left: Pentacheles sp., from the Somali coast at 1289 meters.
Top right: Aristaeopsis sp. Maldive Islands at 2253 meters. Middle right:
Nematocarcinus sp., from 863 meters on the East African coast. Bottom right:
Notostomus sp., Gulf of Guinea at 4000 meters. P. 536.