Sesarmops: Difference between revisions
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Revision as of 19:12, 4 November 2023
| Sesarmops | |
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| Sesarmops imperator | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Family: | Sesarmidae |
| Genus: | Sesarmops |
Sesarmops is a genus of crabs in the family Sesarmidae. Its members are distributed through the Indo–West-Pacific oceanic region. They live in freshwater forest streams near the coast, and in mangroves.
Taxonomy
Sesarmops was defined in 1970 when Serène and Soh re-organised the existing genus Sesarma. They included six species: S. atrorubens, S. impressus, S. intermedius, S. mindanaoensis, S. sinensis, and S. weberi.[1]
Paulay and Starmer (2011) transferred Sesarma angustifrons to the genus in 2011.[1]
The type genus Sesarmops impressum (formerly Sesarma impressa) and related species were reviewed by Ng et al. in 2020.[1] S. impressa sensu lato from the West Pacific have different colouration and gonopods to those of the Indian Ocean. Ng, Li, & Shih restricted S. impressesus to the west Indian Ocean populations, defining S. indicus in the East Indian and S. imperator in the West Pacific oceans. The type locality for S. indicus is the Andaman Islands, records from northern Sumatra, Mentawei Islands and Engano Islands are provisionally referred to the same species.
Hess's original types, from "Sydney", for S. atrorubens and S. similis are lost. Scholars believe that he received the specimens via Sydney, and that they were collected elsewhere. Ng et al. designated neotypes from Fiji and Samoa, respectively.[1]
Comparisons of mitochondrial DNA found that S. impressus and S. imperator form a clade sister to Bresedium eurypleon and B. brevipes, indicating that Sesarmops is paraphyletic to Bresedium.[1]
Species
As at 2023, the World Register of Marine Species recognises 9 species of Sesarmops, with two former species moved to Orisarma.[2]
- Sesarmops angustifrons (A. Milne-Edwards, 1869)
- Sesarmops atrorubens (Hess, 1865) – Fiji.
- Sesarmops imperator Ng, Li & Shih, 2020 – East Asia to Taiwan and Ryukyus.
- Sesarmops impressus (H. Milne Edwards, 1837) – Madagascar, Comoros, Mayotte.
- Sesarmops indicus Ng, Li & Shih, 2020 – Andaman Islands. Possibly north Sumatra and nearby islands.
- Sesarmops intermedius = Orisarma intermedium (De Haan, 1835)
- Sesarmops mindanaoensis (Rathbun, 1914)
- Sesarmops mora Li, Shih & Ng, 2020
- Sesarmops similis (Hess, 1865) – Samoa.
- Sesarmops sinensis = Orisarma sinense (H. Milne Edwards, 1853)
- Sesarmops weberi (De Man, 1892)
References
- ^ a b c d e Ng, Peter K. L.; Li, Jheng-Jhang; Shih, Hsi-Te (1 January 2020). "What is Sesarmops impressus (H. Milne Edwards, 1837) (Crustacea: Brachyura: Sesarmidae)?". Zoological Studies. 59: 27. doi:10.6620/ZS.2020.59-27. Retrieved 4 November 2023.
- ^ DecaNet eds. (2023). DecaNet. Sesarmops Serène & Soh, 1970. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=205690 on 2023-11-04
External links
[Category:Decapod genera]]
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