Assimineidae

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Assimineidae
Temporal range: Cenomanian–Recent
Assiminea grayana-Nl2.jpg
Apertural view of a shell of Assiminea grayana
Scientific classification Red Pencil Icon.png
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.

Contents

Distribution

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

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. [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

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

Genera

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
Synonyms

Related Research Articles

Littorinimorpha Order of gastropods

Littorinimorpha is a large order of snails, gastropods, consisting primarily of sea snails, but also including some freshwater snails and land snails.

Succineidae Family of gastropods

Succineidae are a family of small to medium-sized, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the superfamily Succineoidea.

Buccinidae Family of large sea snails

The Buccinidae are a very large and diverse taxonomic family of large sea snails, often known as whelks or true whelks.

<i>Euhadra</i> Genus of gastropods

Euhadra is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Bradybaeninae of the family Camaenidae.

Pupillidae Family of gastropods

Pupillidae is a family of mostly minute, air-breathing, land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the superfamily Pupilloidea.

<i>Assiminea</i> Genus of gastropods

Assiminea is a genus of minute, salt-tolerant snails with an operculum, aquatic gastropod mollusks, or micromollusks, in the family Assimineidae.

<i>Dicharax</i> Genus of gastropods

Dicharax is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Alycaeidae.

<i>Omphalotropis</i> Genus of gastropods

Omphalotropis is a genus of minute salt marsh snails with an operculum, terrestrial gastropod mollusks in the subfamily Omphalotropidinae of the family Assimineidae.

Paludinella is a genus of minute salt marsh snails with an operculum, aquatic gastropod mollusks or micromollusks, in the family Assimineidae.

Streptaxidae Family of gastropods


Streptaxidae is a family of carnivorous air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Stylommatophora. Six Streptaxidae subfamilies are accepted in the 2005 taxonomy of the Gastropoda by Bouchet & Rocroi.

Cyclophoridae Family of gastropods

Cyclophoridae is a taxonomic family of small to large tropical land snails with an operculum, terrestrial gastropod mollusks in the order Architaenioglossa belonging to the subclass Caenogastropoda.

Columbellidae Family of gastropods

The Columbellidae, the dove snails or dove shells, are a family of minute to small sea snails, marine gastropod mollusks in the order Neogastropoda.

Pupinidae Family of gastropods

Pupinidae is a taxonomic family of land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea.

Chronidae is a family of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the superfamily Trochomorphoidea within the superorder Eupulmonata.

<i>Cyclotus</i> Genus of gastropods

Cyclotus is a genus of tropical land snails in the subfamily Cyclophorinae of the family Cyclophoridae.

<i>Optediceros</i> Genus of gastropods

Optediceros is a genus of minute operculate snails, marine gastropod mollusks or micromollusks in the subfamily Ekadantinae of the family Assimineidae.

<i>Ganesella</i> Genus of gastropods

Ganesella is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Camaeninae of the family Camaenidae.

Mirus is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Eninae of the family Enidae.

<i>Pseudocyclotus</i> Genus of gastropods

Pseudocyclotus is a genus of minute salt marsh snails with an operculum, terrestrial gastropod mollusks in the subfamily Omphalotropidinae of the family Assimineidae.

References

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. 1 2 3 4 5 "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.
  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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