Isolda pulchella Mueller , 1858

Ribeiro, Rannyele Passos, Alves, Paulo Ricardo, Almeida, Zafira da Silva de & Ruta, Christine, 2018, A new species of Paraonis and an annotated checklist of polychaetes from mangroves of the Brazilian Amazon Coast (Annelida, Paraonidae), ZooKeys 740, pp. 1-34 : 16

Isolda pulchella Mueller, 1858 Fig. 10 A–C

Type locality.

Florianópolis, Santa Catarina, Brazil (27°36'S, 48°27'W; estimated geolocation).

Material examined.

São Luís, 02°35'56" S, 44°21'11.8"W: seven specimens, 6 September 2011 (NPM-Pol 849); two specimens, 18 December 2012 (NPM-Pol 067); 14 specimens, 18 December 2012 (NPM-Pol 848). Caranguejos Island, 02°49'33.6"S, 44°28'51.1"W: one specimen, 17 December 2012 (NPM-Pol 850). Complete and incomplete specimens.

Distribution.

Pacific Ocean: Australia, USA. Indian Ocean: Red Sea, Australia. Atlantic Ocean: Portugal, Mediterranean Sea, South Africa, USA, Mexico, Caribbean Sea, Brazil (states of Pará, Maranhão, Sergipe, Rio de Janeiro, São Paulo, Paraná and Santa Catarina, see Suppl. material 1).

Remarks.

The presence of two groups of four branchiae, post-branchial notopodium with sharply curved hooks; twelve or thirteen thoracic segments with pectinate uncini with four to seven teeth support the identification of these specimens as Isolda pulchella Müller, 1858. This species was described in south Brazil and is found along the coast inhabiting estuarine environments, including mangroves and coastal lagoons. The specimens described by Díaz-Díaz and Liñero-Arana (2012) for Caribbean Sea are also similar to the specimens in this study and are recorded in estuaries.