Dilemma (bivalve)
Dilemma is a genus of marine bivalves of the family Poromyidae.[1] The genus is remarkable for encompassing predators of isopods and ostracods, unusual for sessile molluscs.[2] One species is known from the western Atlantic Ocean (Straits of Florida) and three from across the Pacific. Specimens have been found at depths between 229–961 m (751–3,153 ft).[2][3] The name of the genus refers to the dilemma that the author of the new genus faced while diagnosing it.[2]
| Dilemma | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Subterclass: | Heterodonta |
| Superorder: | Anomalodesmata |
| Superfamily: | Poromyoidea |
| Family: | Poromyidae |
| Genus: | Dilemma Leal, 2008 |
| Species | |
|
4 species (see text) | |
Species
There are four species:[1]
- Dilemma frumarkernorum Leal, 2008[2]
- Dilemma inexpectatum (Crozier, 1966)
- Dilemma japonicum Sasaki & Leal, 2008[3]
- Dilemma spectralis Leal, 2008[2]
References
- Bieler R, Bouchet P, Gofas S, Marshall B, Rosenberg G, La Perna R, Neubauer TA, Sartori AF, Schneider S, Vos C, ter Poorten JJ, Taylor J, Dijkstra H, Finn J, Bank R, Neubert E, Moretzsohn F, Faber M, Houart R, Picton B, Garcia-Alvarez O, eds. (2021). "Dilemma Leal, 2008". MolluscaBase. World Register of Marine Species. Retrieved 27 August 2021.
- Leal, José H. (2008). "A remarkable new genus of carnivorous, sessile bivalves (Mollusca: Anomalodesmata: Poromyidae) with descriptions of two new species". Zootaxa. 1764 (1): 1–18. doi:10.11646/ZOOTAXA.1764.1.1.
- Sasaki, T.; Leal, J. H. (2008). "Dilemma japonicum new species (Bivalvia: Anomalodesmata: Poromyidae): a new record of the genus from the Northwest Pacific". The Nautilus. 122: 166–170.PDF fulltext.
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