New records for associations between peritrich protozoan ciliates (Ciliophora, Sessilida) and polychaete worms (Annelida) from off the southeastern coast of India Author Bharathidasan, Veeraiyan Center ofAdvancedStudyin MarineBiology, Faculty ofMarineSciences, Annamalai University, Parangipettai- 608 502, Tamilnadu, India Laboratório de Poliquetologia (LaPol), Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Brazil nogueira @ ib. usp. br; https: // orcid. org / 0000 - 0002 - 8450 - 4294 Author Sarathy, Palanivel Partha 0000-0003-2282-4652 Center ofAdvancedStudyin MarineBiology, Faculty ofMarineSciences, Annamalai University, Parangipettai- 608 502, Tamilnadu, India Laboratório de Poliquetologia (LaPol), Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Brazil nogueira @ ib. usp. br; https: // orcid. org / 0000 - 0002 - 8450 - 4294 & partha 7915 @ gmail. com; https: // orcid. org / 0000 - 0003 - 2282 - 4652 partha7915@gmail.com Author Murugesan, Perumal 0000-0002-1829-9261 Center ofAdvancedStudyin MarineBiology, Faculty ofMarineSciences, Annamalai University, Parangipettai- 608 502, Tamilnadu, India Laboratório de Poliquetologia (LaPol), Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Brazil nogueira @ ib. usp. br; https: // orcid. org / 0000 - 0002 - 8450 - 4294 & pmurugesaan 74 @ gmail. com; https: // orcid. org / 0000 - 0002 - 1829 - 9261 pmurugesaan74@gmail.com Author Nogueira, João Miguel De Matos 0000-0002-8450-4294 nogueira@ib.usp.br text Zootaxa 2021 2021-11-25 5071 4 492 504 journal article 3303 10.11646/zootaxa.5071.4.2 28f6ffd4-f126-4a8b-8a6e-0b666adecc8e 1175-5326 5726361 030319C1-62CE-4EFE-807A-1A8365026856 Genus Namalycastis Hartman, 1959 Diagnosis. Long body, usually with more than 150 chaetigers. Trapezoidal prostomium, with short subconical antennae, two pairs of eyes (eyes absent rarely). Four pairs of tentacular cirri. Dorsal cirri with cylindrical cirrophores on anterior body, and flattened cirrophores on posterior body. Notochaetae usually present; preacicular neurochaetae usually as heterogomph falcigers; postacicular neurochaetae, in most species, as sesquigomph spinigers in supraacicular fascicle and heterogomph spinigers in sub-acicular fascicle; pygidium button-like ( Fig. 3A ) ( Alves & Santos 2016 ).