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A new species of Armandia and a new record of Ophelina (Polychaeta: Opheliidae) from Indian waters

Published online by Cambridge University Press:  05 February 2025

Aiswarya Gopal Open the ORCID record for Aiswarya Gopal [Opens in a new window] ,
Sanitha K. Sivadas  and
Karri Ramu
Aiswarya Gopal*
Affiliation:
National Centre for Coastal Research (NCCR), Ministry of Earth Sciences, Pallikaranai, Tamil Nadu, India
Sanitha K. Sivadas
Affiliation:
National Centre for Coastal Research (NCCR), Ministry of Earth Sciences, Pallikaranai, Tamil Nadu, India
Karri Ramu
Affiliation:
National Centre for Coastal Research (NCCR), Ministry of Earth Sciences, Pallikaranai, Tamil Nadu, India
*
Corresponding author: Aiswarya Gopal; Email: gopalaiswarya@gmail.com; gopalaiswarya@nccr.gov.in
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Abstract

A new species of polychaete annelid, Armandia ramanamurthyi n. sp., is described from the sandy sediments off Tamil Nadu coast, Bay of Bengal, northern Indian Ocean. The major feature distinguishing A. ramanamurthyi n. sp. from other species of the genus is bearing a non-papillated anal tube and the presence of a bulbous, orbicular papilla ventrally placed at the proximal end of the anal tube. The orbicular papilla bears black pigmentation and posteriorly ends in an oblique cirrus. Additionally, Ophelina arabica Parapar, Al-Kandari, Barroso & Moreira, 2023 described from Kuwait waters is recorded for the first time in Indian waters since its original description.

Keywords

ArmandiaIndian Oceannew speciesOphelinaPolychaeta
Type
Marine Record
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 105 , 2025 , e8
Copyright
Copyright © The Author(s), 2025. Published by Cambridge University Press on behalf of Marine Biological Association of the United Kingdom

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