First Record of the Genus Pseudohelice Sakai, Türkay & Yang, 2006 from India and Description of a New Pseudocryptic Species (Crustacea: Brachyura: Varunidae)

A new pseudocryptic species of the varunid crab genus Pseudohelice Sakai, Türkay & Yang, 2006, is described from India based on morphological and molecular evidence. The new species was collected from higher intertidal zones in the Vellar River estuary, Tamil Nadu, southeastern India, in a habitat composed of muddy and sandy sediment. Pseudohelice annamalai n. sp. is similar to P. subquadrata (Dana, 1851) and P. latreillii (H. Milne Edwards, 1837) in general form, but can be distinguished from the congeners by the characters of the infraorbital ridges, male first gonopod, and female vulvae. In addition, the mitochondrial cytochrome oxidase subunit I sequences also support the new species. The occurrence of Pseudohelice from India links the distribution gap between the western Indian Ocean and western Pacific Ocean. The new species provides additional evidence for the geographic isolation of the eastern Indian Ocean for some marine organisms.

關鍵字

Mitochondrial cytochrome oxidase subunit I ； Morphology ； Pseudohelice annamalai ； Taxonomy ； Tamil Nadu

被引用紀錄

Hsi-Te Shih、Jhy-Yun Shy、Jheng-Jhang Li（2023）。Geothelphusa laowang, A New Species of Montane Freshwater Crab (Crustacea: Brachyura: Potamidae) from Southern Taiwan。國立臺灣博物館學刊，76(3&4)，145-162。https://doi.org/10.6532/JNTM.202312_76(3_4).08

延伸閱讀

衤冀麟, & Wang, C. H. (1994). Notes on the Enigmatic Genus Pseudozius Dana, 1851 (Crustacea, Decapoda, Brachyura). 臺灣省立博物館半年刊, 47(1), 83-99. https://doi.org/10.6532/JTM.199406_47(1).0005
衤冀麟, Chen, H. L., & Fang, S. H. (1999). On some species of Hymenosomatidae (Crustacea: Decapoda: Brachyura) from China, with description of a new species of Elamena and a key to the Chinese species. 臺灣省立博物館半年刊, 52(1), 81-93. https://doi.org/10.6532/JTM.199906_52(1).0007
Chan, B. K. K., Tsang, L. M., & Chu, K. H. (2007). Cryptic Diversity of the Tetraclita squamosa Complex (Crustacea:Cirripedia) in Asia: Description of a New Species from Singapore. Zoological Studies, 46(1), 46-56. https://www.airitilibrary.com/Article/Detail?DocID=10215506-200701-201206150006-201206150006-46-56
Li, J. J., Shih, H. T., & Ng, P. K. L. (2019). Three New Species and Two New Records of Parasesarma De Man, 1895 (Crustacea: Brachyura: Sesarmidae) from Taiwan and the Philippines from Morphological and Molecular Evidence. Zoological Studies, 58(), 1-23-040. https://doi.org/10.6620/ZS.2019.58-40
Anker, A., Baeza, J. A., & Grave, S. D. (2009). A New Species of Lysmata (Crustacea, Decapoda, Hippolytidae) from the Pacific Coast of Panama, with Observations of Its Reproductive Biology. Zoological Studies, 48(5), 682-692. https://www.airitilibrary.com/Article/Detail?DocID=10215506-200909-48-5-682-692-a

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