<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Based on light and scanning electron microscopical studies, a new gonad-infecting species of <italic>Philometra</italic> Costa, 1845, <italic>P. dissimilis</italic> n. sp. (Nematoda: Philometridae), is described from the marine fish (Belanger’s croaker) <italic>Johnius belangerii</italic> (Cuvier) (Sciaenidae, Perciformes) in the Bay of Bengal, off the eastern coast of India. The species is mainly characterized by the body length of male 2.73 – 3.37 mm and that of gravid female 145 – 171 mm, needle-like, equal spicules 96 – 120 μm long, length of the gubernaculum 75 – 90 μm, distal end of the gubernaculum with lamellar structures forming a simple dorsal protuberance and by the V-shaped male caudal mound. <italic>Philometra dissimilis</italic> is the seventh known gonad-infecting species of this genus parasitizing sciaenid fishes. Moreover, an additional two species of <italic>Philometra</italic> (only females) were recorded from fishes in the Bay of Bengal: <italic>P</italic>. <italic>lobotidis</italic><xref ref-type="bibr" rid="j_helmin-2016-0004_ref_024_w2aab3b7c21b1b6b1ab2b1c26Aa">Moravec, Walter et Yuniar, 2012</xref> from the abdominal cavity of <italic>Lobotis surinamensis</italic> (Bloch) (Lobotidae, Perciformes), which is a new geographical record, and <italic>Philometra</italic> sp. from the ovary of <italic>Platycephalus indicus</italic> (Linnaeus) (Platycephalidae, Scorpaeniformes), representing probably an undescribed species.</p></abstract>

Based on light and scanning electron microscopical studies, a new gonad-infecting species of Philometra Costa, 1845, P. dissimilis n. sp. (Nematoda: Philometridae), is described from the marine fish (Belanger’s croaker) Johnius belangerii (Cuvier) (Sciaenidae, Perciformes) in the Bay of Bengal, off the eastern coast of India. The species is mainly characterized by the body length of male 2.73 – 3.37 mm and that of gravid female 145 – 171 mm, needle-like, equal spicules 96 – 120 μm long, length of the gubernaculum 75 – 90 μm, distal end of the gubernaculum with lamellar structures forming a simple dorsal protuberance and by the V-shaped male caudal mound. Philometra dissimilis is the seventh known gonad-infecting species of this genus parasitizing sciaenid fishes. Moreover, an additional two species of Philometra (only females) were recorded from fishes in the Bay of Bengal: P. lobotidisMoravec, Walter et Yuniar, 2012 from the abdominal cavity of Lobotis surinamensis (Bloch) (Lobotidae, Perciformes), which is a new geographical record, and Philometra sp. from the ovary of Platycephalus indicus (Linnaeus) (Platycephalidae, Scorpaeniformes), representing probably an undescribed species.

<italic>Philometra dissimilis</italic> n. sp. from the ovary of <italic>Johnius belangerii</italic> (Sciaenidae) and other new records of philometrids (Nematoda: Philometridae) from fishes of the Bay of Bengal, India

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

Faculty of Marine Sciences, Annamalai University, Parangipettai 8066 5502, Tamil Nadu, India

Helminthologia

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 n. sp. from the ovary of  (Sciaenidae) and other new records of philometrids (Nematoda: Philometridae) from fishes of the Bay of Bengal, India

Based on light and scanning electron microscopical studies, a new gonad-infecting species of Philometra Costa, 1845, P. dissimilis n. sp. (Nematoda:...

Philometra dissimilis n. sp. from the ovary of Johnius belangerii (Sciaenidae) and other new records of philometrids (Nematoda: Philometridae) from fishes of the Bay of Bengal, India

Article Category: Research Article

Published Online: Apr 22, 2016

Page range: 133 - 141

Received: Nov 27, 2015

Accepted: Feb 23, 2016

DOI: https://doi.org/10.1515/helmin-2016-0004

© 2016 Institute of Parasitology, SAS, Košice

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.