Notes on symbiotic decapod crustaceans from gorgona island, colombia, with a revision of the eastern pacific species of trapezia (brachyura, xanthidae), symbionts of scleractinian coral

Abstract

Collections of decapod crustaceans associated with scleractinian corals at Gorgona Island, Colombia, have provided material for a revision of the eastern Pacific species of Trapezia (Brachyura, Xanthidae), obligate symbionts of the coral pocillopora. Four sympatric specie are recognized: T. corallina Gerstaecker, T. formosa Smith, T. ferru- ginea Latreille, and T. digitalis Latreille. Two species of symbiotic natantian shrimps [Harpiliopsis spinigcra (OrtmannJ from Pocillopora and Pcriclimencs soror Nobili from asteroids] are recorded from Gorgona for rhe first time.