Proneomeniidae (Solenogastres, Cavibelonia) from the Bentart-2006 Expedition, with description of a new species

During the Spanish oceanographic expedition for the study of Antarctic benthos, Bentart- 2006, carried out in the area of the Bellingshausen Sea and Antarctic Peninsula, seven specimens of Proneomeniidae (Solenogastres, Cavibelonia) were obtained. Proneomenia bulbosa sp. nov. is described here. A comparative table of the main specific characters of the species belonging to the genus Proneomenia is also included. New data of Dorymenia usarpi Salvini-Plawen, 1978 and Dorymenia menchuescribanae García-Álvarez, Urgorri and Salvini-Plawen, 2000 are presented here.