Pisione longispinulata is newly recorded from the Mexican Pacific and is the first record outside its type locality, Coiba Island, Panamaacute, Pacific. Six specimens of the species were collected in the sandy soft bottoms of the intertidal zone of the Oaxaca coasts. The individuals found were three males and three specimens in which the sexual characters could not be distinguished. The holotype and two paratypes from the type locality of the species were also examined, and a short taxonomic note about their diagnostic characters is presented. |
