Elachorbis

Elachorbis Temporal range: Oligocene–Recent[1] PreꞒ Ꞓ O S D C P T J K Pg N
Ventral view of a shell of Elachorbis tatei, the type species of the genus Elachorbis.[2]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda clade Hypsogastropoda clade Littorinimorpha
Superfamily:	Rissooidea
Family:	Tornidae[3][4]
Subfamily:	either Vitrinellinae[3][4] or Circulinae cf.[4]
Genus:	Elachorbis Iredale, 1914[2]
Species
See text

Elachorbis is a genus of minute sea snails or micromolluscs, marine gastropod molluscs in the family Tornidae.[3][4]

Taxonomy

The exact placement of this genus has long been contested.

Tom Iredale established Elachorbis in 1914 within the family Liotiidae.[2] Cotton (1945)[5] also classified Elachorbis within the family Liotiidae. Powell (1979)[1] and ITIS (2011)[6] classified Elachorbis within the family Cyclostrematidae (which is a synonym of Liotiidae).[7]

Various authors have classified this genus in the Skeneidae, which is now the Skeneinae, a subfamily within the Turbinidae.^[citation needed]

Main article: Circulus (gastropod)

The genus Elachorbis is sometimes referred to the subfamily Vitrinellinae within the family Tornidae.[3][4] However, Elachorbis is also sometimes considered to be a synonym of Circulus;[4] Circulus is the type genus of the subfamily Circulinae within the Tornidae.[7]

Species

Species within the genus Elachorbis include:

• Elachorbis diaphana Finlay, 1924[8]
• Elachorbis subtatei (Suter, 1907)[9]
• Elachorbis tatei (Angas, 1878)[3] - type species of the genus Elachorbis[2] - synonyms: Cyclostrema tatei Angas, 1878; Circulus tatei (Angas, 1878)

References

1. Powell A. W. B. (1979). New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand, ISBN 0-00-216906-1.
2. Iredale T. (1914). "A Commentary on Suter's "Manual of the New Zealand Mollusca".". Transactions and Proceedings of the Royal Society of New Zealand 47: 417-497. page 443. HTM.
3. "Elachorbis tatei". Gastropods.com. Retrieved 17 February 2011.
4. "Circulus Jeffreys, 1865". OBIS Indo-Pacific Molluscan Database, accessed 17 February 2011.
5. "SOUTHERN AUSTRALIAN GASTROPODA PART 1. STREPTONEURA."^[permanent dead link‍] Transactions of the Royal Society of South Australia 69(1): 150–171. page 160.
6. "Elachorbis Iredale, 1915", ITIS, accessed 17 February 2011.
7. Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. 47 (1–2). Hackenheim, Germany: ConchBooks: 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.
8. "Elachorbis diaphana". Gastropods.com. Retrieved 17 February 2011.
9. "Elachorbis subtatei". Gastropods.com. Retrieved 17 February 2011.