Ceratonereis singularis Treadwell, 1929

Costa, Dimitri de Araujo, Dolbeth, Marina, Prata, Jessica, da Silva, Francisco de Assis, da Silva, Geuba Maria Bernardo, de Freitas, Paulo Ragner Silva, Christoffersen, Martin Lindsey, de Lima, Silvio Felipe Barbosa, Massei, Karina & de Lucena, Reinaldo Farias Paiva, 2021, Marine invertebrates associated with rhodoliths / maerl beds from northeast Brazil (State of Paraiba), Biodiversity Data Journal 9, pp. 62736-62736 : 62736

Ceratonereis singularis Treadwell, 1929

Materials

Type status: Other material. Occurrence: catalogNumber: CZAP-045; recordedBy: G. da Silva, D. Costa; individualCount: 1; Location: locality: Miramar Beach; verbatimDepth: 1.5 m

Distribution

Northeast Pacific Ocean (Baja California), Caribbean Sea and Brazilian coast ( Maranhão, Paraíba and Alagoas States) ( Amaral et al. 2013, Costa et al. 2017, Read and Fauchald 2020o).

Distribution in Paraíba: Penha Beach ( DeAssis et al. 2012), Seixas Beach ( Costa et al. 2017) and Miramar Beach (New record).

Notes

Found inside the rhodoliths.

Diagnosis

( Perkins 1980, Santos and Lana 2003): Prostomium deeply cleft in the anterior region, with four eyes, two antennae (as long as prostomial width) and two palps (size similar to antennae) (Fig. 4 d). Proboscis with conical paragnaths (areas I and V, VII and VIII none, area II with 9-15 group long oval ones, area III with 6-10 group triangular ones, area IV with 10-16 group oval ones and area VI with cushion-like lobe) and jaws with 5-6 teeth. Four pairs of modified anterior cirri ("tentacular cirri"). Parapodia with notopodial and neuropodial lobes (with pre- and post-chaetal lobes) of same size, falcigers and spinigers chaetae and dark aciculae.