Folia Parasitologica 69:031 (2022) | DOI: 10.14411/fp.2022.031

Five species of Philometra Costa, 1845 (Nematoda: Philometridae) newly recorded from marine fishes in Iraq, including the description of P. arabiensis sp. n. from the ovary of the shrimp scad Alepes djedaba (Carangidae)

František Moravec ORCID...1, Hassan A. Fazaa2, 3, Atheer H. Ali2, Hussein A. Saud ORCID...2
1 Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, České Budějovice, Czech Republic;
2 Department of Fisheries and Marine Resources, College of Agriculture, University of Basrah, Iraq;
3 Department of Animal Production, College of Agriculture, University of Muthana, Iraq

Recent examinations of some marine fishes from off the southern coast of Iraq revealed the presence of five species of Philometra Costa, 1845 (Nematoda: Philometridae): Philometra arabiensis sp. n. (males and females) from the ovary of the shrimp scad Alepes djedaba (Forsskål) (Carangidae, Carangiformes), Philometra psettoditis Moravec, Walter et Yuniar, 2012 (females) from the body cavity of the Indian halibut Psettodes erumei (Bloch et Schneider) (Psettodidae, Pleuronectiformes), Philometra terapontis Moravec, Gopalakrishnan, Rajkumar, Saravanakumar et Kaliyamoorthy, 2011 (female) from the ovary of the jarbua terapon Terapon jarbua (Forsskål) (Terapontidae, Centrarchiformes), Philometra sp. (females) from the ovary of the Arabian blackspot threadfin Polydactylus mullani (Hora) (Polynemidae, Carangariformes) and Philometra sp. 2 of Moravec et al. (2016a) (females) from the ovary and body cavity of the bartail flathead Platycephalus indicus (Linnaeus) (Platycephalidae, Perciformes). Philometra arabiensis sp. n. is mainly characterised by the length of spicules (198-243 µm) and gubernaculum (75-99 µm), the gubernaculum/spicule length ratio (1 : 2.33-2.79), the structure of the gubernaculum distal portion and the male caudal end, and the body length of males (1.86-2.73 mm). The present findings of P. psettoditis and P. terapontis in fishes of the Arabian Gulf represent new geographical records for these parasites.

Keywords: Parasitic nematodes, Dracunculoidea, taxonomy, hosts, Arabian Gulf.

Received: September 2, 2022; Revised: October 14, 2022; Accepted: October 18, 2022; Published online: December 14, 2022  Show citation

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Moravec, F., Fazaa, H.A., Ali, A.H., & Saud, H.A. (2022). Five species of Philometra Costa, 1845 (Nematoda: Philometridae) newly recorded from marine fishes in Iraq, including the description of P. arabiensis sp. n. from the ovary of the shrimp scad Alepes djedaba (Carangidae). Folia Parasitologica, 69, Article 2022.031. https://doi.org/10.14411/fp.2022.031
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