Erection of Euterranova n. gen. and Neoterranova n. gen. (Nematoda, Anisakidae), with the description of E . dentiduplicata n. sp. and new records of two other anisakid nematodes from sharks off New Caledonia

• Published in: Parasite
• Main Authors: Moravec, František, Justine, Jean-Lou
• Other Authors: Institute of Parasitology České Budějovice (BIOLOGY CENTRE CAS), Biology Centre of the Czech Academy of Sciences (BIOLOGY CENTRE CAS), Czech Academy of Sciences Prague (CAS)-Czech Academy of Sciences Prague (CAS), Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École Pratique des Hautes Études (EPHE), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2020
• Subjects: Parasitic nematode; Ascaridoidea; New genus; New species; Elasmobranchs; South Pacific Ocean; [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology; Terranova
• Online Access: https://hal.science/hal-03009288; https://hal.science/hal-03009288/document; https://hal.science/hal-03009288/file/Moravec%20%26%20Justine%20-%20Euterranova%20%26%20Neoterranova%20-%20Parasite2020.pdf; https://doi.org/10.1051/parasite/2020053

International audience Helminthological examinations of three species of sharks, Galeocerdo cuvier, Triaenodon obesus (both Carcharhinidae, Carcharhiniformes) and Stegostoma fasciatum (Stegostomatidae, Orectolobiformes) from New Caledonian waters, carried out during 2003–2005, revealed the presence of three species of adult anisakid nematodes referable to Terranova Leiper et Atkinson, 1914. However, this genus can no longer be considered valid, because its type species has been designated a species inquirenda. Therefore, the present nematodes are assigned to two newly established genera, Euterranova n. gen. [type species E. dentiduplicata n. sp.] and Neoterranova n. gen. [type species N. scoliodontis (Baylis, 1931) n. comb.], based mainly on different labial structures. Euterranova dentiduplicata n. sp. from the stomach of S. fasciatum is mainly characterized by the presence of lips with two rows of denticles. Innominate specimens of Euterranova (a female and a third-stage larva) were collected from the digestive tract of T. obesus. Specimens of N. scoliodontis were recorded from G. cuvier. The two named species are described based on light and scanning electron microscopical examinations. Neoterranova scoliodontis has previously been recorded in New Caledonian waters from the same host species. Species previously attributed to Terranova are transferred to Euterranova (5 species), Neoterranova (4 species) or considered species inquirendae (10 species). Since Pseudoterranova Mozgovoy, 1950 was found to be a nomen nudum according to the International Code of Zoological Nomenclature (ICZN), the available name of this genus is Pseudoterranova Mozgovoy, 1953. A key to Porrocaecum-like nematode genera (Porrocaecum, Pseudoterranova, Pulchrascaris, Euterranova, and Neoterranova) is provided. L’examen helminthologique de trois espèces de requins dans les eaux néo-calédoniennes, Galeocerdo cuvier, Triaenodon obesus (tous deux Carcharhinidae, Carcharhiniformes) et Stegostoma fasciatum (Stegostomatidae, ...