Lysidice unicornis (Grube, 1840)

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

Lysidice unicornis (Grube, 1840)

Materials

Type status: Other material. Occurrence: catalogNumber: (CZAP-219), (CZAP-077); recordedBy: G. da Silva, D. Costa; individualCount: (3), (4); Location: locality: Miramar and Seixas Beaches; verbatimDepth: (4.0 m), (4.0 m)

Distribution

Atlantic Ocean (North to South), Brazilian coast ( Paraíba, São Paulo and Paraná States), Mediterranean Sea, Red Sea, Madagascar and New Zealand ( Amaral et al. 2013, Costa et al. 2017, Read and Fauchald 2020e).

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

Notes

Found inside the rhodoliths.

Diagnosis

( Paxton 2009, Salazar-Vallejo and Carrera-Parra 1997, Zanol et al. 2014): Prostomium rounded without sulcus, with two eyes and only one smooth antenna (Fig. 2 f). Lack of palps. Jaws eulabidognath-type (asymmetrical, posterior parts dentate to Mithraculus forceps -like, short carriers); mandible curved-like. Formula (maxillae): 1+1, 4+4, 4+0, 2+5 and 1+1. Peristomial cirri and branchiae absent. Notopodia with digitiform cirri, larger than ventral cirri. Neuropodia with globular cirri; with limbate, pectinates and falcigers chaetae; yellow aciculae single and yellow subacicular bidentate hooks.