Brevicirrosyllis

Fukuda, Marcelo V., Nogueira, João M. M. & Martín, Guillermo San, 2015, Eusyllinae and “ Incertae sedis ” syllids (Annelida: Syllidae) from South America, with a new species from Brazil and a new combination for a Peruvian species, Zootaxa 3936 (4), pp. 507-537 : 511

Genus Brevicirrosyllis San Martín, López & Aguado, 2009

Type species: Pionosyllis weismanni Langerhans, 1879 , designated by San Martín et al. 2009.

Diagnosis. Relatively small to mid-sized body, sometimes slender, elongate. Palps only basally fused, triangular, distally tapering. Prostomium usually with 2 pairs of eyes, 1 pair of anterior eyespots and 3 antennae. Peristomium with 2 pairs of cirri. Antennae, peristomial cirri and dorsal cirri of chaetiger 1 elongate, dorsal cirri of remaining chaetigers distinctly shorter, frequently nearly ovate; ventral cirri throughout digitiform, of similar size to parapodial lobes. Compound chaetae as falcigers only, blades bidentate, with short spinulation. Dorsal and ventral simple chaetae present at least on posteriormost chaetigers; ventral simple chaetae thick, bidentate, usually with translucent hood covering subdistal tooth. Pharynx with single tooth, close to anterior margin; proventricle similar in length to pharynx. Reproduction by epigamy (San Martín et al. 2009).

Remarks. The genus currently includes five known species (San Martín et al. 2009), our finding representing the first account for Brazilian waters.