Rissopsis
Rissopsis is a genus of very small, somewhat amphibious land snails that have a gill and an operculum, semi-terrestrial gastropod mollusks or micromollusk in the family Iravadiidae.[1]
| Rissopsis | |
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| Genus: | Rissopsis Garrett, 1873 |
| Type species | |
| Rissopsis typica Garrett, 1873 | |
Species
Species within the genus Rissopsis include:
- Rissopsis prolongata (Turton, 1932)
- Rissopsis tuba Kilburn, 1977
- Rissopsis typica Garrett, 1873
- Species brought into synonymy
- Rissopsis brevis May, 1919: synonym of Austrorissopsis consobrina (Tate & May, 1900)
- Rissopsis expansa Powell, 1930: synonym of Eusetia expansa (Powell, 1930)
- Rissopsis ligula Kilburn, 1975: synonym of Rissopsis prolongata (Turton, 1932)
gollark: Set it equal to `(x-1)(ax^3+bx^2+cx+d)` (the thing you know it's divisible by times the generalized cubic thingy), and expand that out/simplify.
gollark: It would be annoying and inconsistent if it was 0. It's 1.
gollark: It's 1, or the nice neat recursive factorial calculation algorithms would stop working.
gollark: It's not an example, this seems to be true in all cases.
gollark: Oh, they said they don't need to be different, so square numbers are fine I guess.
References
- Bouchet, P.; Gofas, S. (2012). Rissopsis Garrett, 1873. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=535772 on 2012-08-14
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