Abstract
Two species of the mazocraeid monogenean genus Paramazocraes Tripathi, 1959 are redescribed based on specimens collected from the gills of clupeoid fishes off the Visakhapatnam coast, Bay Bengal: Paramazocraes thrissocles Tripathi, 1959 from Thryssa mystax (Bloch & Schneider), T. setirostris (Broussonet), T. malabarica (Bloch) and Paramazocraes setipinna Zhang & Ding in Zhang, Yang & Liu, 2001 from Setipinna taty (Valenciennes). The two species were subjected to morphological and morphometric analyses. The study revealed that P. thrissocles and P. setipinna differ mainly in the number, size and arrangement of the testes. A review of the genus Paramazocraes is provided and the validity of some of the Indian species of the genus is discussed. Sequences of the 28S rRNA gene for the two species are deposited in the GenBank.
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Acknowledgements
We would like to thank Drs Sean Locke (University of Puerto Rico) and N. Govinda Rao (Department of Environmental Sciences, Andhra University, India) for their help with the morphometric analysis and for running the PCA. The authors are indebted to Dr Ding for the loan of specimens of P. setipinna collected from the South China Sea.
Funding
Funding for this work was provided by the Ministry of Environment & Forests (Govt. of India) under the ‘All India Co-ordinated project on Taxonomy Capacity Building’.
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Sailaja, B., Shameem, U. & Madhavi, R. Redescription and morphometric analysis of Paramazocraes thrissocles Tripathi, 1959 and P. setipinna Zhang & Ding in Zhang, Yang & Liu, 2001 (Monogenea: Mazocraeidae) infecting clupeoid fishes off Visakhapatnam coast, Bay of Bengal. Syst Parasitol 93, 193–203 (2016). https://doi.org/10.1007/s11230-015-9616-6
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DOI: https://doi.org/10.1007/s11230-015-9616-6