AI Article Synopsis
- The analysis of Elthusa samariscii records from Japan and India shows they are actually a new species, named Sandythoa tiranga, discovered in India.
- This new genus is characterized by specific features like the shape of the cephalon and the number of antenna segments.
- Additionally, several species have been reclassified under the new genus Sandythoa, along with an updated identification key for related marine species.
Article Abstract
The comparative analysis of records of Elthusa samariscii (Shiino, 1951) from Japan and India, alongside corresponding illustrations, indicates that the records of E. samariscii from Samaris cristatus Gray in India represent a distinct and previously undescribed species. This study introduces Sandythoa tiranga gen. and sp. nov., providing comprehensive descriptions of various lifecycle stages, including the female, male, transitional, premanca, and manca larvae. The following combinations of characters identify the genus: cephalon anterior margin with acute rostrum; pleonite 1 is distinctly narrow, not extending laterally; presence of a narrow gap between pleonites; antenna with more than 10 articles; maxilliped with oostegital lobe. Sandythoa tiranga sp. nov. is specifically identified along the southwest coast of India. Furthermore, we propose transferring the following species from Elthusa: Sandythoa arnoglossi (Trilles and Justine 2006) comb. nov.; Sandythoa parabothi (Trilles and Justine, 2004) comb. nov.; Sandythoa samariscii (Shiino, 1951) comb. nov.; Sandythoa moritakii (Saito and Yamauchi, 2016) comb. nov. A revised key to the global marine branchial cymothoid genera is provided.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11228006 | PMC |
| http://dx.doi.org/10.1007/s11230-024-10163-2 | DOI Listing |
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