Caiçara - the native inhabitants of the southeastern Brazilian coast - collecting cockles Anomalocardia brasiliana in sandy-muddy sediment in the intertidal region.
The zoanthids have two types of larvae. The zoanthellas are cylindrical and have an ventral band of long cilia. The zoanthinas are oval or slightly elongated, with an equatorial band of cilia.
Symbiotic copepod associated with a planktonic invertebrate
O copépode S. angusta vive na cavidade do corpo do tunicado planctônico Thalia democratica, se alimientando dos tecidos do hospedeiro, o que pode causar sua morte.
Barnacles are an entirely marine group of crustaceans with a sessile way of life, attached permanently to a hard substrate, such as rocks, shells, corals, roots etc.
