Abstract

Pseudione humboldtensis, a new species of bopyrid parasite of the squat lobsters Cervimunida johni and Pleuroncodes monodon, from the Northern coast Chile is described. This increases to six the number species of the genus Pseudione in Chile. P. humboldtensis clearly differs from the other species in the presence of smooth edges of the coxal plates, laterals and barbules, the large pleopods and the development of the female pereiopods. This new record increases the total number of bopyrid species in Chilean waters to nine.