Assimineidae















Assimineidae
Temporal range: Miocene–Recent[1]

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Assiminea grayana-Nl2.jpg
Apertural view of a shell of Assiminea grayana

Scientific classification
Kingdom:

Animalia

Phylum:

Mollusca

Class:

Gastropoda

(unranked):

clade Caenogastropoda
clade Hypsogastropoda
clade Littorinimorpha

Superfamily:

Truncatelloidea

Family:

Assimineidae



H. Adams & A. Adams, 1856

Subfamilies

Assimineinae
Ekadantinae
Omphalotropidinae



Diversity[2]

About 20 freshwater species and numerous amphibious terrestrial/marine species

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.




Contents





  • 1 Distribution


  • 2 Ecology


  • 3 Description


  • 4 Taxonomy


  • 5 Genera


  • 6 References


  • 7 External links




Distribution


The distribution of the Assimineidae is worldwide.[1]



Ecology


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



Description


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


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


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


subfamily Assimineinae



  • Assiminea Fleming, 1828 - type genus of Assimineidae, synonym: Assiminia

subfamily Ekadantinae



  • Paludinella Pfeiffer, 1841

subfamily Omphalotropidinae



  • Omphalotropis Pfeiffer, 1851 - type genus of the subfamily Omphalotropidinae


  • Garrettia Paetel, 1873


  • Pseudocyclotus Thiele, 1894


  • Thaanumella Clench, 1946

subfamily ?



  • Acmella Blanford, 1869

  • Afroassiminea


  • Angustassiminea Habe, 1943


  • Austroassiminea Solem, Girardi, Slack-Smith & Kendrick 1982


  • Balambania Crosse, 1891


  • Conacmella Thiele, 1925


  • Conassiminea Fukuda & Ponder, 2006


  • Cyclomorpha Pease, 1871


  • Electrina Baird, 1850


  • Fijianella Cooke & Clench, 1943


  • Heteropoma Benson, 1856


  • Kubaryia Clench, 1948


  • Ponapella Clench, 1946


  • Pseudogibbula Dautzenberg, 1890


  • Quadrasiella Moellendorff, 1894


  • Rapanella Cooke & Clench, 1943

  • Septariellina


  • Wrayanna Clench, 1948

incertae sedis


  • Assimineidae incertae sedis vulgaris Webster, 1905 [7]


References


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




  1. ^ abcdef "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. .mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em
    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 Archived February 10, 2012, at the Wayback Machine


  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




External links


Media related to Assimineidae at Wikimedia Commons








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