Acroloxidae
Acroloxidae, commonly known as river limpets, are a taxonomic family of very small, freshwater snails, aquatic pulmonate gastropod limpet-like mollusks with a simple flattened conical shell in the clade Hygrophila.
Acroloxidae | |
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A left side view of a live Acroloxus lacustris | |
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Two views of a shell of Acroloxus lacustris | |
Scientific classification | |
Kingdom: | |
Phylum: | |
Class: | |
(unranked): | |
Superfamily: | Acroloxoidea Thiele, 1931 |
Family: | Acroloxidae Thiele, 1931 |
Diversity[1] | |
about 40 freshwater species |
Acroloxidae is the only family within the superfamily Acroloxoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).
Distribution
Worldwide.[2]
Anatomy
Pulmones are reduced. Sexual cavity and accessory gills are on the right side.[2]
Genera
Genera within the family Acroloxidae include:
- Acroloxus Beck, 1838[3] - type genus[4]
- Ancylastrum Bourguignat, 1853
- Baicalancylus Starobogatov, 1967[4]
- Gerstfeldtiancylus Starobogatov, 1989[4][5]
- Pseudancylastrum Lindholm, 1909[4][6]
gollark: Oh, it also says it's done 25.4TB of reads and 17.4TB of writes.
gollark: Hmm, apparently "elements in grown defect list" is "bad blocks" and this is actually quite bad, fun.
gollark: It has 68513 hours of power on time, 1986 power on/off cycles out of a rated 10000, and 4 "elements in grown defect list".
gollark: Ah, according to the data I got off it, my drive was manufactured in 2012. Which is something like threeish years after the server came into existence, as far as I know.
gollark: Also, there was some admittedly small-scale testing by some computer review company and SSDs could mostly go significantly beyond their endurance ratings and manage hundreds of terabytes written. But also did tend to fail suddenly and inexplicably instead of having a graceful failure.
References
This article incorporates public domain text from the reference.[2]
- Strong E. E., Gargominy O., Ponder W. F. & Bouchet P. (2008). "Global Diversity of Gastropods (Gastropoda; Mollusca) in Freshwater". Hydrobiologia 595: 149-166. hdl:10088/7390 doi:10.1007/s10750-007-9012-6.
- "Family summary for Acroloxidae". AnimalBase, last change 14-08-2006, accessed 3 August 2010
- Beck H. (1837). Index molluscorum præsentis ævi musei principis augustissimi Christiani Frederici. pp. 1-100 [1837], 101-124 [1838]. Hafniae.
- Kantor Yu I., Vinarski M. V., Schileyko A. A. & Sysoev A. V.(published online on December 22, 2009). "CATALOGUE OF THE CONTINENTAL MOLLUSKS OF RUSSIA AND ADJACENT TERRITORIES". Version 2.3.
- Starobogatov (1989). In: Linevich (Ed.) Fauna Baikala. Chast' 4 - Chervi, mollyuski, chlenistonogie: sbornik nauchnykh trudov. Fauna of Lake Baikal. Part 4 - worms, molluscs and arthropods: collected scientific papers. Nauka, Novosibirsk: 58.
- Lindholm (1909). Wiss. Ergeb. Exped. Baikal 4: 26.
External links
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