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A problematic taxonomy of Bathophilus (Stomiidae) collected from the Arabian Sea

Published online by Cambridge University Press:  10 February 2023

Rajeev Rajakrishnan Open the ORCID record for Rajeev Rajakrishnan [Opens in a new window] ,
Meleppura Rajeeshkumar  and
Narayanane Saravanane
Rajeev Rajakrishnan*
Affiliation:
Centre for Marine Living Resources and Ecology (CMLRE), Ministry of Earth Sciences, Atal Bhavan, LNG Road, Puthuvype south, Ochanthuruthu PO, Kochi 682508, Kerala, India
Meleppura Rajeeshkumar
Affiliation:
Centre for Marine Living Resources and Ecology (CMLRE), Ministry of Earth Sciences, Atal Bhavan, LNG Road, Puthuvype south, Ochanthuruthu PO, Kochi 682508, Kerala, India
Narayanane Saravanane
Affiliation:
Centre for Marine Living Resources and Ecology (CMLRE), Ministry of Earth Sciences, Atal Bhavan, LNG Road, Puthuvype south, Ochanthuruthu PO, Kochi 682508, Kerala, India
*
Author for correspondence: Rajeev Rajakrishnan, E-mail: rajeevrajakrishnan@gmail.com
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Abstract

The number of rays in pectoral and pelvic fins are the major diagnostic character for species discrimination in the genus Bathophilus. However, all of the five species of Bathophilus we studied showed considerable differences from the existing counts in the number of rays in pectoral and pelvic fins, which has made species identification and interrelations doubtful. We believe taxonomy focusing on the number of rays in the pelvic and pectoral fin alone does not fully discriminate species. At present, the importance of other characters has to be validated for correct species identification. We also report the first record of Bathophilus proximus from the Indian Ocean and additional new records of Bathophilus cwyanorum, Bathophilus altipinnis and Bathophilus digitatus from the Arabian Sea.

Keywords

Bathophilus longipinnisBathophilus novickimesopelagicnew recordsspecies similarity
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 103 , 2023 , e15
Copyright
Copyright © The Author(s), 2023. Published by Cambridge University Press on behalf of Marine Biological Association of the United Kingdom

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