Parapionosyllis cabezali, a new species of Exogoninae (Polychaeta: Syllidae
) from the Atlantic coast of Spain, is described. This new species is chara
cterised by the shape of the simple and compound setae, small dorso-ventral
gradation in the length of the blades, and by the presence along the body
of two types of parapodial glands, which open dorsally separately from each
other.
Campoy (1982) identified three specimens collected in Punta Endata, Guipuzc
oa, NE Atlantic, Spain, as Parapionosyllis cf. gestans (Pierantoni, 1903).
Subsequently, during a study of the taxonomy and ecology of the sublittoral
soft bottom benthic polychaetous annelids in the Ria de Ferrol and Ria de
Baiona, both located on the Atlantic coast of NW Spain, more specimens of t
his species were collected and reported by Parapar (1991), Parapar et al. (
1994) and Moreira (1999). Examination by SEM of several specimens collected
in the Ria de Baiona (NW Spain) has provided evidence that these organisms
represent a new species. The specimens are characterized by the shape and
dorso-ventral gradation in the length of the compound setal blades and by t
he presence along the body of two types of parapodial glands. In this paper
, we describe and discuss this new species. The diagnosis of the genus was
provided by Fauvel (1923) and San Martin (1984).