Ancistrosyllis McIntosh 1878
- Dataset
- Pilargidae (Annelida: Phyllodocida) from coastal and deep waters of the Southwestern Atlantic, with descriptions of two new species
- Rank
- GENUS
Classification
- kingdom
- Animalia
- phylum
- Annelida
- class
- Polychaeta
- order
- Phyllodocida
- family
- Pilargidae
- genus
- Ancistrosyllis
discussion
Remarks. The antennae of Ancistrosyllis are very small, barely larger than the body papillae; this has led to confusion about their number. The presence of a median antenna was used to separate the genus Ancistrosyllis, with one median and two lateral antennae, from Ancistargis Jones, 1961, with two lateral antennae (Jones 1961). Pettibone (1966) proposed the synonymy between these genera, considering the presence of median antenna doubtful, due to the collection and fixation artefacts that cause prostomium contraction. Emerson & Fauchald (1971) disagreed, considering the character sufficient to retain Ancistargis. Ensuing studies have substantiated claims for Ancistargis ’ synonymy (Fitzhugh & Wolf 1990; Salazar-Vallejo 1987 b). Ancistrosyllis jonesi Pettibone, 1966, from the intertidal of sandy beaches in southeast coast of Brazil, is the only species of the genus previously recorded from Brazil (Amaral et al. 2003).
materials_examined
Type species. Ancistrosyllis groenlandica McIntosh, 1878, by monotypy.