A new species of Paraonis and an annotated checklist of polychaetes from mangroves of the Brazilian Amazon Coast (Annelida, Paraonidae) Author Ribeiro, Rannyele Passos Author Alves, Paulo Ricardo Author Almeida, Zafira da Silva de Author Ruta, Christine text ZooKeys 2018 740 1 34 http://dx.doi.org/10.3897/zookeys.740.14640 journal article http://dx.doi.org/10.3897/zookeys.740.14640 1313-2970-740-1 2DAF40B395FF46BBAFB486E62F116973 2DAF40B395FF46BBAFB486E62F116973 Namalycastis senegalensis (Saint-Joseph, 1901) Fig. 7 Type locality. Marsassoun, Senegal ( 13°59'N , 16°43'W ; estimated geolocation). Material examined. Caranguejos Island, 02°49'33.6"S , 44°28'51.1"W : one specimen, incomplete, 22 October 2010 (NPM-Pol 105). Figure 7. Namalycastis senegalensis , fixed specimen, NPM-Pol 105. A Anterior end, dorsal view B Parapodia of 10th chaetiger, anterior view C Sub-acicular neurochaetae spiniger of 10th chaetiger D Sub-acicular neurochaeta falciger of 10th chaetiger. Scale bars: 2.3 mm (A), 0.2 mm (B), 0.02 mm (C, D). Distribution. Atlantic Ocean: Senegal, Nigeria, Congo, Suriname, Brazil (states of Para and Maranhao , see Suppl. material 1). Remarks. First record for Maranhao . Complete specimens were not found in this study; however, the features of the anterior body are very similar to the re-description of Glasby (1999) . The presence of thick cuticle covering the eyes, supra neuro acicular sesquigomph spinigers in the parapodia of chaetiger 10, with a 1.4 x length of collar or more boss, and distally smooth falciger blades supports the identification of the species. Previous Brazilian records include the Amazon coast, the estuarine beaches of Marajo Island in the mouth of the Amazon River ( Glasby 1999 ), and the delta of the Amazon River (one specimen, ZHM PE405) ( Glasby 1999 ). This species is known to live in brackish water and freshwater environments such as mangroves, creeks, and marshes ( Glasby 1999 ).