New species of Stylochocestididae and Cryptocelididae (Platyhelminthes, Polycladida: Acotylea) from the Atlantic Coast of Uruguay

BULNES, FAUBEL, PONCE DE LEON

Mitt. ham. zool. Mus. Inst

Ham. Zool. Mus. Inst.

Lugar: Hamburgo; Año: 2003 p. 56 - 72

Four new acotylean species of the order Polycladida, i.e. Mabelaplana santateresae sp. nov., Barcoplana rochensis sp. nov., Adenodactyloplana uruguayensis sp. nov., and Hylocelis diabloensis  sp. nov. were found on the southern West Atlantic coast of Uruguay. The new genus Adenodactyloplana gen. nov., member of the family Cryptocelididae, is established based on the presence of an adenodactylus entering the distal part of the ejaculatory duct. Mabelaplana gen. nov. and Barcoplana gen n. are members of the Stylochocestididae. Mabelaplana is characterized based on the presence of a vaginal duct and penis papilla. Barcoplana is established on the basis of a vaginal duct and a distal ejaculatory duct working as cirrus. The four new species were collected on rocky beaches of Santa Teresa National Park, Uruguay. The species live in the littoral zone on rocks within Mytilus edulis assemblages.