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Redescription of Labidocera gangetica Sewell, 1934 from Bay of Bengal, Indian Ocean

Published online by Cambridge University Press:  19 June 2025

I. Anandavelu Open the ORCID record for I. Anandavelu [Opens in a new window] ,
R. Jayabarathi ,
G. Hariharan  and
G. Padmavati
I. Anandavelu*
Affiliation:
Department of Ocean Studies and Marine Biology, Pondicherry University, Sri Vijaya Puram, Andaman & Nicobar Islands, India Centre for Marine Living Resources and Ecology, Ministry of Earth Sciences, Atal Bhavan, Kochi, India
R. Jayabarathi
Affiliation:
Department of Ocean Studies and Marine Biology, Pondicherry University, Sri Vijaya Puram, Andaman & Nicobar Islands, India
G. Hariharan
Affiliation:
National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Chennai, India
G. Padmavati
Affiliation:
Department of Ocean Studies and Marine Biology, Pondicherry University, Sri Vijaya Puram, Andaman & Nicobar Islands, India
*
Corresponding author: I. Anandavelu; Email: ianandavelu@gmail.com
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Abstract

A poorly understood and partially described planktonic copepod, Labidocera gangetica Sewell, 1934, is fully described herein from the Hooghly River, a century after its initial collection from the Rangoon (now Yangon) River estuary by Sewell (1912). The complete description of L. gangetica suggests possible uncertainty regarding the validity of the species Labidocera jaafari Othman, 1986, due to the morphological similarity in their overall body plan. In particular, the features of the leg 5 of both sexes are identical, suggesting that L. jaafari is probably a synonym of L. gangetica. Additionally, the taxonomic features of the mouthparts and swimming legs are illustrated for the first time.

Keywords

Copepodgangetica subgroupHooghly RiverLabidocera jaafaritaxonomy

Information

Type
Marine Record
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 105 , 2025 , e64
Copyright
© The Author(s), 2025. Published by Cambridge University Press on behalf of Marine Biological Association of the United Kingdom.

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Footnotes

†

Present address: Centre for Marine Living Resources and Ecology, Ministry of Earth Sciences, Atal Bhavan, Kochi, India.

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