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Characterization of Filisoma argusum n. sp. (Acanthocephala: Cavisomatidae Meyer, 1932) infecting the spotted scat, Scatophagus argus (Linnaeus, 1766) from the Indian coast

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Relation http://eprints.cmfri.org.in/15432/
https://link.springer.com/article/10.1007%2Fs00436-021-07207-7
10.1007/s00436-021-07207-7
 
Title Characterization of Filisoma argusum n. sp. (Acanthocephala:
Cavisomatidae Meyer, 1932) infecting the spotted scat, Scatophagus argus (Linnaeus, 1766) from the Indian coast
 
Creator Kaur, Pinky
Shamal, P
Chandran, Archana
Sharma, S R Krupesha
Sanil, N K
 
Subject Parasites
Bacteria
Fish Pathology
Algae
Demersal Fishes
 
Description The present paper describes Filisoma argusum n. sp. (Cavisomatidae), an acanthocephalan parasite infecting the intestine of the
spotted scat, Scatophagus argus (Linnaeus, 1766), in the south-west coast of India. The prevalence is 18% (mean intensity: 1.61
and abundance: 1–4 worms/host). Filisoma argusum n. sp. is morphologically characterized by a creamy-white, cylindrical,
elongate, aspinose, and robust trunk; a collar-like neck; and a cylindrical proboscis with 18–20 longitudinal rows of hooks, with
19–22 hooks/row. Proboscis receptacle long, double-walled. Lemnisci digitiform, equal, longer than proboscis receptacle.
Females 79.14 ± 33.69 × 0.593 ± 0.19 mm; males 32.62 ± 2.98 × 0.46 ± 0.071 mm. Males with four cement glands; bulbous
muscular copulatory bursa with six digitiform rays. SEM studies revealed smooth hooks, sensory pits, and epidermal micropores.
Histopathological changes at the site of parasite attachment included inflammation, hemorrhage, sloughing of epithelium, and
detachment of mucosal layer of the intestine. In molecular and phylogenetic analyses, the parasite occupied an independent
position within the Cavisomatidae clade with high bootstrap values for both ITS1-5.8S and ITS2, and mt-CO1 regions.
Considering the morphologic and morphometric differences with previously described species of Filisoma along with its
phylogenetic positioning, the present acanthocephalan is treated as a new species and the name Filisoma argusum n. sp. is
proposed
 
Publisher Springer
 
Date 2021-03-08
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/15432/1/Parasitology%20Research_2021_Sanil%20N%20K.pdf
Kaur, Pinky and Shamal, P and Chandran, Archana and Sharma, S R Krupesha and Sanil, N K (2021) Characterization of Filisoma argusum n. sp. (Acanthocephala: Cavisomatidae Meyer, 1932) infecting the spotted scat, Scatophagus argus (Linnaeus, 1766) from the Indian coast. Parasitology Research, 120. pp. 2505-2521.