Assimineidae

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Assimineidae
Temporal range: Cenomanian–Recent
Apertural view of a shell of Assiminea grayana
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Superfamily: Truncatelloidea
Family: Assimineidae
H. Adams & A. Adams, 1856
Subfamilies
Diversity[1]
About 20 freshwater species and numerous amphibious terrestrial/marine species
Synonyms
  • Omphalotropidinae Thiele, 1927· accepted, alternate representation
  • Thaanumellinae Clench, 1946

Assimineidae is a family of minute snails, also known as palmleaf snails, with an operculum, gastropod mollusks or micromollusks in the superfamily Rissoidae. Many of these very small snails live in intermediate habitats, being amphibious between saltwater and land; others live in freshwater.

Distribution

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The distribution of the Assimineidae is worldwide.[2] The oldest fossils are known from the Cenomanian aged Burmese amber.[3]

Ecology

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Various species in this family occur in estuarine habitats, in salt marshes and in freshwater. Some are terrestrial or amphibious.

Description

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The shell is small to medium large, more or less egg-conelike shaped.[2] The apertural margin is simple.[2] The operculum is in most cases horny.[2]

Species in this family are characterized by rudimentary cephalic tentacles, a trunklike snout, a foot with a groove and rudimentary to absent ctenidium (a comb-like respiratory apparatus).[4]

Taxonomy

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The following three subfamilies were recognized in the taxonomy of Bouchet & Rocroi (2005):

  • Subfamily Assimineinae H. Adams & A. Adams, 1856 - synonym: Synceratidae Bartsch, 1920
  • Subfamily Ekadantinae Thiele, 1929 - synonyms: Paludinellidae Kobelt, 1878 (n.a.); Cyclotropidae Iredale, 1941
  • Subfamily Omphalotropidinae Thiele, 1927 - Realiinae L. Pfeiffer, 1853 (inv.); Adelomorphinae Kobelt, 1906 (inv.); Garrettiinae Kobelt, 1906; Pseudocyclotini Thiele, 1929; Thaanumellinae Clench, 1946; Tutuilanidae Hubendick, 1952

Genera

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Genera in the family Assimineidae include:[5][6][7]

Genus † Laternoides W. Yu & Y.-H. Xi, 1977

subfamily Assimineinae

subfamily Ekadantinae

subfamily Omphalotropidinae Thiele, 1927 (synonym: Garrettiinae Kobelt, 1906)

incertae sedis
  • Assimineidae incertae sedis vulgaris Webster, 1905[8]
  • Assimineidae incertae sedis turrita (W. H. Turton, 1932) (taxon inquirendum)
  • Assimineidae incertae sedis turritella (W. H. Turton, 1932) (taxon inquirendum)
Synonyms
  • Adelomorpha Tapparone Canefri, 1886: synonym of Pseudocyclotus Thiele, 1894 (Invalid: Junior homonym of Adelomorpha Snellen, 1885 [Lepidoptera])
  • Adelostoma E. A. Smith, 1885: synonym of Pseudocyclotus Thiele, 1894 (invalid: junior homonym of Adelostoma Duponchel, 1827)
  • Assemania Dollfus, 1912: synonym of Assiminea J. Fleming, 1828 (unjustified emendation)
  • Assimania: synonym of Assiminea J. Fleming, 1828 (incorrect spelling of genus name)
  • Assiminella Monterosato, 1906: synonym of Paludinella L. Pfeiffer, 1841 (unnecessary substitute name for Paludinella L. Pfeiffer, 1841)
  • Assiminia J. Fleming, 1828: synonym of Assiminea J. Fleming, 1828 (alternative original spelling [used in the index p. 557])
  • Diadema Pease, 1868: synonym of Garrettia Paetel, 1873 (invalid: junior homonym of Diadema Gray, 1825)
  • Dramelia Iredale, 1941: synonym of Acmella W. T. Blanford, 1869 (junior synonym)
  • Heteropoma Möllendorff, 1894: synonym of Allepithema Tomlin, 1931 (invalid: junior homonym of Heteropoma Benson, 1856; Allepithema is a replacement name)
  • Paludinassiminea Matsubayashi & Habe, 1990: synonym of Solenomphala Heude, 1882 (unavailable name: no type species designated)
  • Tribe Pseudocyclotini Thiele, 1929: synonym of Omphalotropidinae Thiele, 1927
  • Scalinella Pease, 1868: synonym of Omphalotropis L. Pfeiffer, 1851
  • Stenotropis Kobelt & Möllendorff, 1898: synonym of Omphalotropis (Stenotropis) Kobelt & Möllendorff, 1898 represented as Omphalotropis L. Pfeiffer, 1851
  • Syncera Gray, 1821 (nomen nudum)

References

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This article incorporates public domain text from the reference.[2]

  1. ^ 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.
  2. ^ a b c d e "Family summary for Assimineidae". AnimalBase, last change 15-08-2006, accessed 4 August 2010.
  3. ^ Bullis, David A.; Herhold, Hollister W.; Czekanski-Moir, Jesse E.; Grimaldi, David A.; Rundell, Rebecca J. (March 2020). "Diverse new tropical land snail species from mid-Cretaceous Burmese amber (Mollusca: Gastropoda: Cyclophoroidea, Assimineidae)". Cretaceous Research. 107: 104267. doi:10.1016/j.cretres.2019.104267. S2CID 210289753.
  4. ^ Abbott, R.T. (1958). "The gastropod genus Assiminea in the Philippines". Proceedings of the Academy of Natural Sciences of Philadelphia. 110: 213–278.
  5. ^ "Assimineidae". Integrated Taxonomic Information System.
  6. ^ Ingentaconnect
  7. ^ ZipCodeZoo Archived February 10, 2012, at the Wayback Machine
  8. ^ Rosenberg, G. (2012). Assimineidae incertae sedis vulgaris. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=598622 on 2012-05-31
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Media related to Assimineidae at Wikimedia Commons

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