A new species of Procamallanus Baylis, 1923 (Nematoda, Camallanidae) from Astronotus ocellatus (Agassiz, 1831) (Perciformes, Cichlidae) in Brazil

By

Pinheiro, Raul Henrique da Silva
Melo, Francisco Tiago de Vasconcelos
Monks, Scott
Santos, Jeannie Nascimento dos
Giese, Elane Guerreiro

Type

Article

Date of Publication

2018

Original Publication

ZooKeys

Volume

790

Pages

21-33

Subjects

Amazon , Fish , helminth , nematode

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.790.24745

 

Abstract

A new species ofProcamallanusBaylis, 1923 was found as a parasite of the fishAstronotusocellatus(Agassiz, 1831) from a lake in the Jardim Botânico Bosque Rodrigues Alves, Belém, Brazil.Procamallanusspiculastriatussp. n.has a smooth buccal capsule and a well-developed basal ring that is armed with four sclerotized tooth-like structures. The male of the new species is similar to the two species that are known from Brazilian fish,P.peraccuratusPinto, Fábio, Noronha & Rolas, 1976, andP.annipetteraeKohn & Fernandes, 1988, by the absence of the gubernaculum. It differs from these two by the morphology of the buccal capsule, the number are arrangement of the caudal papillae in males, the size and morphology of the spicules and the shape of the tail of both sexes.Procamallanusspiculastriatussp. n.is the third species discovered in fish from Brazil. This finding extends the geographical distribution of the genus into the Brazilian Amazon.