Aylacostoma
| Aylacostoma | |
|---|---|
_-_Thiaridae_-_Mollusc_shell.jpeg)
| |
| Aylacostoma crenocarina | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | |
| Class: | |
| (unranked): | |
| Superfamily: | |
| Family: | |
| Genus: | Aylacostoma |
| Type species | |
| Aylacostoma glabrum Spix, 1827
| |
| Diversity[2] | |
| 32 species | |
Aylacostoma is a
Species
Species within genus Aylacostoma include:
- Aylacostoma brunneum Vogler & Peso, 2014
- Aylacostoma chloroticum Hylton-Scot, 1953
- Aylacostoma ci Simone, 2001
- Aylacostoma exoplicatum Simone, 2001
- Aylacostoma francanum (Ihering, 1909)[2]
- Aylacostoma glabrum Spix, 1827
- Aylacostoma guaraniticum Hylton-Scot, 1953
- Aylacostoma osculati (Villa, 1857) - synonym: Hemisinus osculati[5]
- Aylacostoma stigmaticum Hylton-Scot, 1953
- Aylacostoma tenuilabris (Reeve, 1860)
Distribution
The native distribution of this genus includes Central and South America.[2]
Life habits
Some species in this genus used to live in areas of white water in the Yacyretá Rapids,
algae that grow attached to the rocks on the bottom. The water in the area is saturated with oxygen, from the fast-moving waters.[citation needed
]
Aylacostoma is a
parthenogenic species: the population consists of only females, which increase in number by asexual reproduction. The females give birth to a small number of larvae, no more than three, that are born very well developed, so they have the physical strength needed to attach to a rock and resist the strong current.[citation needed
]
Conservation status
With the building in 1993 of the
Bernardino Rivadavia Natural Sciences Museum.[3]
References
- ^ Spix J. B. von (1827). Testacea fluviatilia quae in itinere per Brasiliam annis MDCCCXVII-MDCCCXX. page 15.
- ^ .
- ^ a b c Vogler (2013). The Radula of the Extinct Freshwater Snail Aylacostoma stigmaticum (Caenofastropoda: Thiaridae) from Argentina and Paraguay. Malacologia 56 (1-2): 329-332.
- ^ a b Vogler, Beltramino, Strong & Rumi (2015). A phylogeographical perspective on the ex situ conservation of Aylacostoma (Thiaridae, Gastropoda) from the High Paraná River (Argentina–Paraguay). Zoological Journal of the Linnean Society 174(3): 487-499.
- . Retrieved 16 November 2021.
External links
Wikimedia Commons has media related to Aylacostoma.
- Simone L. R. L. (2006). Land and freshwater molluscs of Brazil: an illustrated inventory on the Brazilian malacofauna, including neighbour regions of the South America, respect to the terrestrial and freshwater ecosystems. São Paulo: FAPESP, 390 pp.