Abstract
The genus Joryma is here revised, with a description of a new species collected from the host Escualosa thoracata (Clupeidae) off the Malabar Coast of the Arabian Sea. Joryma malabaricus sp. nov. is described from female, male, transitional, pre-manca, and manca stages and the female stage is distinguished from other Joryma species by the following female characteristics: cephalon conspicuous dorsally and extending beyond pereonite 1 expansion, pereonite 1 anterolateral expansion unilateral and not bilobed, laterally overlapped pleonites 1 and 2, triangular pleotelson, uropod rami unequal in length; exopod slightly longer than endopod, mandibular palp not segmented in female (three segments in male), four recurved spines in maxilliped palp. A neotype was designated and redescribed for J. engraulidis, with an additional description from fresh material. Joryma sawayah and Joryma hilsae are redescribed from the female stage and described from the male stage respectively. The type material of Joryma tartoor and Joryma brachysoma is lost and after their original description, both species have not been reported. A key to the species of Joryma is also presented.
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Acknowledgements
The authors are thankful to the Director, Zoological Survey of India, Kolkata for his encouragement and providing facilities to carry out the description part of the research work. The authors thankfully acknowledge the University Grants Commission, New Delhi for Dr. DS Kothari Post-Doctoral Fellowship (No.F.4-2/2006 (BSR)/BL/16-17/0401; dated: 28th August 2017) awarded to PTA. Further, the authors thankfully acknowledge the effort made by two anonymous reviewers and the subject editor for their critical reviewing of the manuscript and valuable suggestions/corrections for the improvement of the manuscript.
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This study was funded by the Ministry of Environment & Forests, Govt. of India and University Grants Commission, New Delhi through Post-Doctoral Fellowship to PTA.
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Aneesh, P.T., Helna, A.K., Trilles, JP. et al. A taxonomic review of the genus Joryma Bowman and Tareen, 1983 (Crustacea: Isopoda: Cymothoidae) parasitizing the marine fishes from Indian waters, with a description of a new species. Mar Biodiv 49, 1449–1478 (2019). https://doi.org/10.1007/s12526-018-0920-7
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DOI: https://doi.org/10.1007/s12526-018-0920-7