Recent examinations of camallanid nematodes (Camallanidae) from marine fishes off New Caledonia, collected in the years 2003-2011, revealed the presence of the following five new species of Procamallanus Baylis, 1923, all belonging to the subgenus Spirocamallanus Olsen, 1952: Procamallanus (Spirocamallanus) dispar n. sp. from the common ponyfish Leiognathus equulus (type host) and the striped ponyfish Aurigequula fasciata (both Leiognathidae, Perciformes); Procamallanus (Spirocamallanus) bothi n. sp. from the leopard flounder Bothus pantherinus (Bothidae, Pleuronectiformes); Procamallanus (Spirocamallanus) hexophtalmatis n. sp. from the speckled sandperch Parapercis hexophtalma (Pinguipedidae, Perciformes); Procamallanus (Spirocamallanus) synodi n. sp. from the sand lizardfish Synodus dermatogenys (Synodontidae, Aulopiformes); and Procamallanus (Spirocamallanus) thalassomatis n. sp. from the yellow-brown wrasse Thalassoma lutescens (Labridae, Perciformes). These are described based on light and scanning electron microscopical (SEM) studies. An additional three congeneric nematodes unidentifiable to species are reported from perciform fishes and a shark: Procamallanus (Spirocamallanus) sp. 3 of Moravec et al., 2006, Procamallanus (Spirocamallanus) sp. 1, and Procamallanus (Spirocamallanus) sp. 2. Ten fish species are recorded as new hosts for Camallanus carangis Olsen, 1954. Two camallanids, Procamallanus (Spirocamallanus) sp. 3 (subgravid female) and Camallanus carangis (fourth-stage larva) were also found in the digestive tract of the New Caledonian sea krait Laticauda saintgironsi, serving apparently as postcyclic and paratenic hosts, respectively, for these fish nematodes.

TITLE: Nouvelles espèces et nouveaux signalements de nématodes camallanidés (Nematoda, Camallanidae) provenant de poissons marins et de serpents de mer en Nouvelle-Calédonie. ABSTRACT: L’étude récente de nématodes camallanidés (Camallanidae) de poissons marins capturés au large de la Nouvelle-Calédonie, recueillis de 2003 à 2011, a révélé la présence des cinq nouvelles espèces suivantes de Procamallanus Baylis, 1923, toutes appartenant au sous-genre Spirocamallanus Olsen, 1952 : Procamallanus (Spirocamallanus) dispar n. sp. de Leiognathus equulus (hôte-type) et de Aurigequula fasciata (tous deux Leiognathidae, Perciformes) ; Procamallanus (Spirocamallanus) bothi n. sp. de Bothus pantherinus (Bothidae, Pleuronectiformes) ; Procamallanus (Spirocamallanus) hexophtalmatis n. sp. de Parapercis hexophtalma (Pinguipedidae, Perciformes) ; Procamallanus (Spirocamallanus) synodi n. sp. de Synodus dermatogenys (Synodontidae, Aulopiformes) ; et Procamallanus (Spirocamallanus) thalassomatis n. sp. de Thalassoma lutescens (Labridae, Perciformes). Ces espèces sont décrites sur la base d’études réalisées au microscope électronique à balayage et au microscope photonique. Trois autres nématodes congénères non identifiables au niveau spécifique sont signalés chez des poissons perciformes et un requin : Procamallanus (Spirocamallanus) sp. 3 de Moravec et al., 2006, Procamallanus (Spirocamallanus) sp. 1 et Procamallanus (Spirocamallanus) sp. 2. Dix espèces de poissons sont rapportées comme nouveaux hôtes pour Camallanus carangis Olsen, 1954. Deux camallanidés, Procamallanus (Spirocamallanus) sp. 3 (femelles subgravides) et Camallanus carangis (larve du quatrième stade) ont également été trouvés dans le tube digestif du serpent marin de Nouvelle-Calédonie, Laticauda saintgironsi, qui semble servir respectivement d’hôte post-cyclique et d’hôte paraténique pour ces nématodes de poissons.

Institut Systématique Évolution Biodiversité Muséum National d'Histoire Naturelle CNRS Sorbonne Université EPHE Université des Antilles rue Cuvier CP 51 75005 Paris France

Institute of Parasitology Biology Centre of the Czech Academy of Sciences Branišovská 31 370 05 České Budějovice Czech Republic

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