An illustration of Cyerce sp., a genus of sacoglossa sea slug. They are referred to as sacoglossa, or sap-sucking, because they subsist on the fluid sucked from algae.
Subject: original field drawing in Bartsch/s notebook on nudibranchs (page 77 - labeled: L 10 - 28W 7 124 - 29E Artist: unknown Published: Unpublished...original field drawing in Bartsch’s notebook on nudibranchs.