Leptothyra

Leptothyra
Leptothyra filifer shells
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Vetigastropoda
Superfamily: Phasianelloidea
Family: Colloniidae
Subfamily: Colloniinae
Genus: Leptothyra
sensu Pease, 1869[1]
Type species
Leptothyra costata Pease, 1869

Leptothyra is a genus of sea snails, marine gastropod mollusks in the family Colloniidae.[2]

This genus was previously placed in the family Turbinidae.

The name Leptothyra is generally attributed to Pease (1869), and the name "Leptothyra Pease, 1869" is usually treated as a valid name for small colloniines. Although Leptothyra is a junior objective synonym of Homalopoma, the species usually treated as valid in that genus are provisionally listed in WoRMS under "Leptothyra sensu Pease, 1869", pending a taxonomic/nomenclatural reappraisal.[2]

Leptothyra J. G. Cooper, 1867 is now considered a synonym of the genus Homalopoma Carpenter, 1864 [3]

Description

The small, solid shell has a turbinate or globose shape. The operculum is multispiral with a subcentral nucleus and concave in the centre outside. The main character distinguishing Collonia from Leptothyra seems to be the peculiar peristome of the former.[4]

Species

Species within the genus Leptothyra include:

Species brought into synonymy
  • Leptothyra africana Bartsch, 1915: synonym of Cinysca spuria (Gould, 1861)
  • Leptothyra agulhasensis Thiele, 1925: synonym of Homalopoma agulhasense (Thiele, 1925)
  • Leptothyra albida Dall, 1881: synonym of Homalopoma albidum (Dall, 1881)
  • Leptothyra albocincta Turton, 1932: synonym of Tricolia striolata (Turton, 1932)
  • Leptothyra alfredensis Bartsch, 1915: synonym of Parviturbo alfredensis (Bartsch, 1915)
  • Leptothyra arenacea Pritchard & Gatliff, 1902: synonym of Charisma arenacea (Pritchard & Gatliff, 1902)
  • Leptothyra carminea Bartsch, 1915: synonym of Homalopoma quantillum carmineum (Bartsch, 1915)
  • Leptothyra coelata A. Adams, 1854: synonym of Anadema macandrewii Mörch, 1868
  • Leptothyra costata Pease, 1869: synonym of Leptothyra verruca (Gould, 1845)
  • Leptothyra crassilirata Preston, 1909: synonym of Collonista crassilirata (Preston, 1909)
  • Leptothyra cunninghami E. A. Smith, 1881: synonym of Homalopoma cunninghami (E. A. Smith, 1881)
  • Leptothyra delecta E. A. Smith, 1899: synonym of Collonista delecta (E. A. Smith, 1899)
  • Leptothyra eroopolitana (Issel, 1869) : synonym of Turbo eroopolitanus Issel, 1869
  • Leptothyra eucosmia Turton, 1932: synonym of Cinysca spuria (Gould, 1861)
  • Leptothyra fluctuata (Hutton, 1883): synonym of Argalista fluctuata (Hutton, 1883)
  • Leptothyra gestroi Caramagna, 1888:[8] synonym of Yaronia gestroi (Caramagna, 1888)
  • Leptothyra globuloides Dautzenberg & H. Fischer, 1896: synonym of Cantrainea globuloides (Dautzenberg & H. Fischer, 1896)
  • Leptothyra induta Watson, 1879: synonym of Homalopoma indutum (Watson, 1879)
  • Leptothyra induta var. tincta Dall, 1889: synonym of Homalopoma indutum (Watson, 1879)
  • Leptothyra induta var. insculpta Dall, 1889: synonym of Homalopoma indutum (Watson, 1879)
  • Leptothyra innocens Thiele, 1912: synonym of Leptocollonia innocens (Thiele, 1912)
  • Leptothyra insculpta Dall, 1889: synonym of Homalopoma indutum (Watson, 1879)
  • Leptothyra laeta (Montrouzier in Souverbie & Montrouzier, 1863): synonym of Collonia granulosa Pease, 1868
  • Leptothyra limata Dall, 1889: synonym of Homalopoma linnei (Dall, 1889)
  • Leptothyra linnei Dall, 1889: synonym of Homalopoma linnei (Dall, 1889)
  • Leptothyra paucicostata Dall, 1871: synonym of Homalopoma paucicostatum (Dall, 1871)
  • Leptothyra philipiana Dall, 1889: synonym of Cantrainea philipiana (Dall, 1889)
  • Leptothyra picta Marshall, 1979: synonym of Leptothyra kermadecensis Marshall, 1979
  • Leptothyra quantilla (Gould, 1861): synonym of Homalopoma quantillum (Gould, 1861)
  • Leptothyra rotundata (G.B. Sowerby III, 1892): synonym of Homalopoma rotundatum (G.B. Sowerby III, 1892)
  • Leptothyra sakaensis Yokoyama, 1925: synonym of Littorina brevicula (Philippi, 1844)
  • Leptothyra sanguinea Linnaeus, 1758: synonym of Homalopoma sanguineum (Linnaeus, 1758)
  • Leptothyra solida Preston, 1908: synonym of Collonista solida (Preston, 1908)
  • Leptothyra tincta Dall, 1889: synonym of Homalopoma indutum (Watson, 1879)

References

  1. ↑ Pease (1869). American Journal of Conchology 5(2): 70.
  2. 1 2 Leptothyra .  Retrieved through: World Register of Marine Species on 18 March 2011.
  3. ↑ Bouchet, P. (2014). Leptothyra J. G. Cooper, 1867. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=751372 on 2014-06-12
  4. ↑ G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia
  5. ↑ Leptothyra candida Pease, 1861.  Retrieved through: World Register of Marine Species on 20 April 2010.
  6. ↑ Leptothyra filifera (Deshayes, 1863).  Retrieved through: World Register of Marine Species on 20 April 2010.
  7. ↑ Gastropods.com: Leptothyra inepta
  8. ↑ Leptothyra gestroi Caramagna, 1888.  Retrieved through: World Register of Marine Species on 20 April 2010.

Further reading

  • Marshall B. A. (1979). The Trochidae and Turbinidae of the Kermadec Ridge (Mollusca: Gastropoda). New Zealand Journal of Zoology 6: 521-552


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