A new species of Paraonis and an annotated checklist of polychaetes from mangroves of the Brazilian Amazon Coast (Annelida, Paraonidae)

By

Ribeiro, Rannyele
Alves, Paulo Ricardo
Almeida, Zafira da Silva de
Ruta, Christine

Type

Article

Date of Publication

2018

Original Publication

ZooKeys

Volume

740

Pages

Jan-34

Subjects

annelid , mangrove , Maranhão , new records , Paraonis , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.740.14640

 

Abstract

The polychaete fauna from the mangroves of the Amazon Coast in Maranhão state, Brazil, is reported in this study. Fourteen species are listed, namelyAlittasuccinea(Leuckart, 1847); Arabella (Arabella) iricolor Montagu, 1804;Capitellacapitata(Fabricius, 1780) complex; Exogone (Exogone) breviantennata Hartmann-Schröder, 1959;Heteromastusfiliformis(Claparède, 1864);IsoldapulchellaMüller, 1858;MediomastuscaliforniensisHartman, 1944;NamalycastisfauveliNageswara Rao, 1981;Namalycastisgeayi(Gravier, 1901);Namalycastissenegalensis(Saint-Joseph, 1901);NephtyssimoniPerkins, 1980;Paraonisamazonicasp. n.;Sigambrabassi(Hartman, 1945); andSigambragrubiiMüller, 1858. Among them,NamalycastisfauveliandNamalycastisgeayiare recorded for the first time in Brazil.Paraonisamazonicasp. n.is a new species for science, characterized by a rounded prostomium, 4–8 pairs of foliaceous branchiae, absent eyes, and two types of modified neurochaetae, acicular and hook-shaped.