The echinoderm fauna of the estuarine lagunar complex of Cananeia (São Paulo) is described. Some observations on the density and distri bution of the eight species found in the region are presented. Three species are found in great density, i.e., Mellita quinquiesperforata (echinoidea), Ophiactys savignyi and Ophiothrix angulata (ophiuroi dea). The species found in most stations was Micropholis subtilis. Asteroids, holothurioids and crinoids are not recorded in the present samples.
