Molecular Biology and Genetics

Molecular Biology

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Specimen Records:143
Specimens with Sequences:90
Specimens with Barcodes:88
Species:37
Species With Barcodes:16
Public Records:86
Public Species:14
Public BINs:29
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Wikipedia

Assimineidae

Assimineidae is a family of minute 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[edit]

The distribution of the Assimineidae is worldwide.[1]

Ecology[edit]

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

Description[edit]

The shell is small to medium large, more or less egg-conelike shaped.[1] The apertural margin is simple.[1] The operculum is in most cases horny.[1]

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).[3]

Taxonomy[edit]

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[edit]

Genera in the family Assimineidae include:[4][5][6]

subfamily Assimineinae

subfamily Ekadantinae

subfamily Omphalotropidinae

subfamily ?

incertae sedis

References[edit]

This article incorporates public domain text from the reference.[1]

  1. ^ a b c d e f "Family summary for Assimineidae". AnimalBase, last change 15-08-2006, accessed 4 August 2010.
  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.
  3. ^ Abbott, R.T. (1958). "The gastropod genus Assiminea in the Philippines". Proceedings of the Academy of Natural Sciences of Philadelphia 110: 213–278. 
  4. ^ "Assimineidae". Integrated Taxonomic Information System. 
  5. ^ Ingentaconnect
  6. ^ ZipCodeZoo
  7. ^ 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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