Dianella (gastropod)

Dianella is a little-known genus of small freshwater snails with a gill and an operculum, aquatic gastropod molluscs in the family Hydrobiidae.[3]

Dianella
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Littorinimorpha
Superfamily:
Truncatelloidea
Family:
Hydrobiidae
Subfamily:
Pyrgulinae
Genus:
Dianella

Gude, 1913[1]
Type species
* Diana Clessin, 1878 (primary homonym)

Distribution

These are European freshwater snails; they occur in southeastern Europe, from northern Italy, through the Balkans, to the Black Sea and the Caspian Sea

Description

Their relatively big shell has an onic or turriform shape with a common, prominent, spiral sculpture. The radula shows a rhachidian tooth with no basal cusps. Their stomach has a caecal appendix at its pyloric end. They have a Hydrobia-like central nervous system, a simple penis and a characteristic, big seminal receptacle at the end of a prominent spiral of the coiled oviduct.[4]

Species

Species within the genus Dianella include:[1][5][6]

  • † Dianella gracilis (Pavlović, 1903)
  • Dianella schlickum Schütt, 1962
  • Dianella thiesseana Kobelt, 1878
Species brought into synonymy
  • † Dianella crassa (Burgerstein, 1877): synonym of † Prososthenia crassa Burgerstein, 1877
  • † Dianella nodosa (Burgerstein, 1877): synonym of † Prososthenia nodosa Burgerstein, 1877
  • † Dianella reticulata (Burgerstein, 1877): synonym of † Prososthenia reticulata Burgerstein, 1877
  • † Dianella suessi (Burgerstein, 1877): synonym of † Prososthenia suessi Burgerstein, 1877

References
  1. "Taxon Details: Dianella Gude, 1913". Fauna Europaea. 25 January 2011. Retrieved 31 July 2014. (note: genus still classified within family Pyrgulidae, which has been synonymised with Hydrobiidae)
  2. Szarowska, M.; Falniowksi, A.; Riedel, F. & Wilke, T. (2005). "Phylogenetic relationships of the subfamily Pyrgulinae (Gastropoda: Caenogastropoda: Hydrobiidae) with emphasis on the genus Dianella Gude, 1913" (PDF). Zootaxa. 891: 1–32. Retrieved 31 July 2014.
  3. "Dianella". UniProt. Retrieved 31 July May 2014. Check date values in: |accessdate= (help)
  4. MAGDALENA SZAROWSKA, ANDRZEJ FALNIOWSKI, FRANK RIEDEL, & THOMAS WILKE, Phylogenetic relationships of the subfamily Pyrgulinae (Gastropoda: Caenogastropoda: Hydrobiidae) with emphasis on the genus Dianella Gude, 1913; Zootaxa 891: 1–32 (2005)
  5. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 31 July 2014.
  6. Roskov Y.; Kunze T.; Orrell T.; Abucay L.; Paglinawan L.; Culham A.; Bailly N.; Kirk P.; Bourgoin T.; Baillargeon G.; Decock W.; De Wever A.; Didžiulis V., eds. (2014). "Genus Dianella". Species 2000 & ITIS Catalogue of Life, 2014 Annual Checklist. Species 2000: Naturalis, Leiden, the Netherlands. Retrieved 31 July 2014.
  • Gude, G.K. (1913). On some preoccupied molluscan names (generic and specific). Proceedings of the Malacological Society of London. 10, 292-293. page(s): 292
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