Symethis
| Symethis Temporal range:
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| Preserved specimen of S. variolosa | |
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| Subfamily: | Symethinae Goeke, 1981
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| Genus: | Symethis Weber, 1795
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Symethis is a genus of
pleopods and by the reduced number of gills (7 pairs rather than 8 pairs), and is therefore placed in a separate subfamily, Symethinae.[1]
There are three extant species:[2]
- Symethis garthi Goeke, 1981 – Pacific coast of Panama [1]
- Symethis variolosa (Fabricius, 1793) – western Atlantic Ocean, from North Carolina, to Bahia, Brazil [1]
One further species,[4] Symethis johnsoni is known from fossils of Paleogene age,[5] but may belong in the subfamily Lyreidinae rather than in Symethis.[5]
References
- ^ Proceedings of the Biological Society of Washington. 93 (4): 971–981.
- ^ Peter Davie (2010). "Symethis Weber, 1795". WoRMS. World Register of Marine Species. Retrieved January 1, 2012.
- ^ P. J. F. Davie (1989). "Smethis corallica sp. nov. (Crustacea, Brachyura, Raninidae), the first member of the Smethinae to be recorded" (PDF). Bulletin du Muséum National d'Histoire Naturelle. 4th. 11 (A2): 425–430.
- Raffles Bulletin of Zoology. Suppl. 21: 1–109.
- ^ a b David A. Waugh, Rodney M. Feldmann & Carrie E. Schweitzer (2009). "Systematic evaluation of raninid cuticle microstructure" (PDF). Bulletin of the Mizunami Fossil Museum. 35: 15–41.
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