A new tree-spider crab of the genus Leptarma (Brachyura, Sesarmidae) from mangroves in Kerala, India
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Abstract
A new species of long-legged sesarmid crab of the Leptarma leptosoma (Hilgendorf, 1869) species-group is described from mangroves in south-western India. In the general carapace features as well as in the proportions of the long ambulatory legs, L. biju n. sp. is most similar to L. gracilipes (Li, Rahayu & Ng, 2018), from eastern Indonesia and Papua New Guinea, but can easily be distinguished by the structure of the gonopods as well as the leg proportions.
Résumé
Une nouvelle espèce de crabe Sesarmidae à longues pattes du groupe d’espèces Leptarma leptosoma (Hilgendorf, 1869), est décrite de mangroves de l’Inde sud-occidentale. Par les caractéristiques générales de la carapace comme par les proportions des longues pattes ambulatoires, L. biju n. sp. apparaît la plus proche de L. gracilipes (Li, Rahayu & Ng, 2018), de l’Indonésie orientale et de Papouasie-Nouvelle-Guinée, mais peut en être facilement distinguée par la structure des gonopodes ainsi que par les proportions des pattes.
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Fratini, S., M. Vannini, S. Cannicci & C. D. Schubart, 2005. Tree-climbing mangrove crabs: a case of convergent evolution. Evolutionary Ecology Research, 7: 219-233.
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Li, J.-J., D. L. Rahayu & P. K. L. Ng, 2018. Identity of the tree-spider crab, Parasesarma leptosoma (Hilgendorf, 1869) (Decapoda: Brachyura: Sesarmidae), with seven new species from the West Pacific. Zootaxa, 4482(3): 451-490.
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Ng, P. K. L., 2012. The identity of Sesarma rotundata Hess, 1865, and description of a new species of arboreal crab of the genus Labuanium Serène & Soh, 1970, from Guam, western Pacific (Crustacea: Decapoda: Brachyura: Sesarmidae). Raffles Bulletin of Zoology, (Supplement) 25: 265-277.
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Ng, P. K. L., B. Y. Lee & H. H. Tan, 2015. Notes on the taxonomy and ecology of Labuanium politum (De Man, 1887) (Crustacea: Decapoda: Sesarmidae), an obligate arboreal crab on the nipah palm, Nypa fruticans (Arecales: Arecaceae). Raffles Bulletin of Zoology, (Supplement) 31: 216-225.
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Ng, P. K. L., H.-T. Shih, P.-H. Ho & C.-H. Wang, 2017. An updated annotated checklist of brachyuran crabs from Taiwan (Crustacea: Decapoda). Journal of the National Taiwan Museum, 70(3-4): 1-185.
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Pati, S. M., V. Rani, P. S. Sujila & S. B. Nandan, 2019. First confirmed record of the sesarmid crab, Parasesarma bengalense (Davie, 2003) (Decapoda: Brachyura) in Indian waters. Nauplius, 27: e2019012, 6 pp.
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Rathbun, M. J., 1918. The grapsoid crabs of America. Bulletin of the United States National Museum, 97: 1-461.
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Schubart, C. D., H.-C. Liu & P. K. L. Ng, 2009. Revision of Selatium Serène & Soh, 1970 (Crustacea: Brachyura: Sesarmidae), with description of a new genus and two new species. Zootaxa, 2154: 1-29.
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Shahdadi, A., S. Fratini & C. D. Schubart, 2020. Taxonomic reassessment of Parasesarma (Crustacea: Brachyura: Decapoda: Sesarmidae) based on genetic and morphological comparisons, with the description of a new genus. Zoological Journal of the Linnean Society: 1-36. http://zoobank.org/urn:lsid:zoobank.org:pub:43B9C712-8FB3-4606-8381-4ED90091D0A8 or DOI: https://doi.org/10.1093/zoolinnean/zlaaO25.
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Shahdadi, A. & C. D. Schubart, 2017. Taxonomic review of Perisesarma (Decapoda: Brachyura: Sesarmidae) and closely related genera based on morphology and molecular phylogenetics: new classification, two new genera and the questionable phylogenetic value of the epibranchial tooth. Zoological Journal of the Linnean Society, 182: 517-548.
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Trivedi, J. & K. Vachhrajani, 2017. On distributional range extension of two species of brachyuran crabs Parasesarma persicum and Austruca iranica in Indian waters. Journal of the Marine Biological Association of India, 59: 79-84.
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Trivedi, J. N., D. J. Trivedi, K. D. Vachhrajani & P. K. L. Ng, 2018. An annotated checklist of marine brachyuran crabs (Crustacea: Decapoda: Brachyura) of India. Zootaxa, 4502(1): 1-83.
| All Time | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 1305 | 98 | 6 |
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A new tree-spider crab of the genus Leptarma (Brachyura, Sesarmidae) from mangroves in Kerala, India
In: CrustaceanaSearch for other papers by Peter K. L. Ng in
Current site
Google Scholar
PubMed
Search for other papers by Suvarna S. Devi in
Current site
Google Scholar
PubMed
Abstract
A new species of long-legged sesarmid crab of the Leptarma leptosoma (Hilgendorf, 1869) species-group is described from mangroves in south-western India. In the general carapace features as well as in the proportions of the long ambulatory legs, L. biju n. sp. is most similar to L. gracilipes (Li, Rahayu & Ng, 2018), from eastern Indonesia and Papua New Guinea, but can easily be distinguished by the structure of the gonopods as well as the leg proportions.
Résumé
Une nouvelle espèce de crabe Sesarmidae à longues pattes du groupe d’espèces Leptarma leptosoma (Hilgendorf, 1869), est décrite de mangroves de l’Inde sud-occidentale. Par les caractéristiques générales de la carapace comme par les proportions des longues pattes ambulatoires, L. biju n. sp. apparaît la plus proche de L. gracilipes (Li, Rahayu & Ng, 2018), de l’Indonésie orientale et de Papouasie-Nouvelle-Guinée, mais peut en être facilement distinguée par la structure des gonopodes ainsi que par les proportions des pattes.
| All Time | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 1305 | 98 | 6 |
| Full Text Views | 49 | 16 | 0 |
| PDF Views & Downloads | 59 | 9 | 0 |