Eoacmaea is a genus of sea snails or true limpets, marine gastropod mollusks in the subclass Patellogastropoda, the true limpets.[2]
| Eoacmaea | |
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| Shell of Eoacmaea profunda (syntype at MNHN, Paris) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Patellogastropoda |
| Superfamily: | Lottioidea |
| Family: | Eoacmaeidae |
| Genus: | Eoacmaea Nakano & Ozawa, 2007[1] |
| Type species | |
| Patella profunda Deshayes, 1863 | |
Eoacmaea is the only genus in the family Eoacmaeidae, belonging to the superfamily Lottioidea.
Etymology
editThe generic name Eoacmaea is composed from the Eo that mean "early"[1] in Greek and Acmaea,[1] that is the genus of gastropod in family Lottiidae.
Taxonomy
editThe family Eoacmaeidae was established by Nakano & Ozawa (2007)[1] for the genus Eoacmaea.
A cladogram based on sequences of mitochondrial 12S ribosomal RNA, 16S ribosomal RNA and cytochrome-c oxidase I (COI) genes showing phylogenic relations of Patellogastropoda by Nakano & Ozawa (2007)[1] and superfamilies based on World Register of Marine Species:[2]
| Patellogastropoda |
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Eoacmaea is the most basal group within Patellogastropoda[1] and Eoacmaea have diversified from other Patellogastropoda in Tethys Ocean in Triassic or Jurassic about 203 million years ago (limits are from 143 to 279 million years ago).[1]
Species
editSpecies within the genus Eoacmaea include:[1]
- Eoacmaea albonotata (Smith, 1901)
- Eoacmaea calamus (Crosse & Fischer, 1864)
- Eoacmaea ceylanica (E.A. Smith, 1911)
- Eoacmaea chamorrorum (Lindberg & Vermeij, 1985)
- Eoacmaea conoidalis (Pease, 1868)
- Eoacmaea ivani (Christiaens, 1975)
- Eoacmaea javanica (Nakano, Aswan & Ozawa, 2005)
- Eoacmaea mauritiana (Pilsbry, 1891)
- Eoacmaea omanensis (Christiaens, 1975)
- Eoacmaea perfestiva (Faber, 2004)
- Eoacmaea profunda (Deshayes, 1863) - type species
- Eoacmaea pustulata (Helbling, 1779)
- Eoacmaea semirubida (Dall, 1914)
References
edit- ^ a b c d e f g h Nakano T. & Ozawa T. (2007). "Worldwide phylogeography of limpets of the order Patellogastropoda: Molecular, morphological and palaeontological evidence". Journal of Molluscan Studies 73(1) 79-99. doi:10.1093/mollus/eym001.
- ^ a b MolluscaBase eds. (2020). MolluscaBase. Eoacmaea T. Nakano & Ozawa, 2007. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=456551 on 2020-11-03