Overview
Assimineidae is a family of minute snails with an operculum that live in saltwater, freshwater or on the land; they are mostly aquatic gastropod mollusks or micromollusks, in the clade Littorinimorpha.
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 i n most cases horny.[1]
They 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 have been 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
- Conassiminea
- 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
- 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
- Conassiminea
- 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
References
This article incorporates public domain text from the reference [1].
- ^ a b c d e f "Family summary for Assimineidae". AnimalBase, last change 15-08-2006, accessed 4 August 2010.
- ^ Strong E. E., Gargominy O., Ponder W. F. & Bouchet P. (2008). "Global Diversity of Gastropods (Gastropoda; Mollusca) in Freshwater". Hydrobiologia 595: 149-166. http://hdl.handle.net/10088/7390 doi:10.1007/s10750-007-9012-6.
- ^ Abbott, R.T. (1958). "The gastropod genus Assiminea in the Philippines". Proceedings of the Academy of Natural Sciences of Philadelphia 110: 213?278.
- ^ "Assimineidae". Integrated Taxonomic Information System. http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=71051.
- ^ Ingentaconnect
- ^ ZipCodeZoo
Taxonomy
The Family Assimineidae is a member of the Superfamily Rissooidea. Here is the complete "parentage" of Assimineidae:
- Domain: Eukaryota
Whittaker & Margulis,1978 - eukaryotes
- Kingdom: Animalia
C. Linnaeus, 1758 - animals
- Subkingdom: Bilateria
(Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians
- Branch: Protostomia
Grobben, 1908 - protostomes
- Infrakingdom: Lophotrochozoa
- Lophotrochozoans
- Superphylum: Eutrochozoa
- Phylum: Mollusca
(C. Linnaeus, 1758) Cuvier, 1795 - Molluscs
- Class: Gastropoda
Cuvier, 1795 - Snails and Slugs
- Subclass: Orthogastropoda
Ponder & Lindberg, 1996
- Superorder: Caenogastropoda
Cox, 1960
- Order: Sorbeoconcha
Ponder & Lindberg, 1997
- Suborder: Hypsogastropoda
Ponder & Lindberg, 1997
- Infraorder: Littorinimorpha
Golikov & Starobogatov, 1975
- Superfamily: Rissooidea
J.E. Gray, 1847
- Family: Assimineidae H. Adams & A. Adams, 1856
- Superfamily: Rissooidea
J.E. Gray, 1847
- Infraorder: Littorinimorpha
Golikov & Starobogatov, 1975
- Suborder: Hypsogastropoda
Ponder & Lindberg, 1997
- Order: Sorbeoconcha
Ponder & Lindberg, 1997
- Superorder: Caenogastropoda
Cox, 1960
- Subclass: Orthogastropoda
Ponder & Lindberg, 1996
- Class: Gastropoda
Cuvier, 1795 - Snails and Slugs
- Phylum: Mollusca
(C. Linnaeus, 1758) Cuvier, 1795 - Molluscs
- Superphylum: Eutrochozoa
- Infrakingdom: Lophotrochozoa
- Lophotrochozoans
- Branch: Protostomia
Grobben, 1908 - protostomes
- Subkingdom: Bilateria
(Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians
- Kingdom: Animalia
C. Linnaeus, 1758 - animals
The Family Assimineidae is further organized into finer groupings including:
- Subfamily (2): Assimineinae · Omphalotropidinae
- Genus (28): Acmella · Anaglyphula · Angustassiminea · Assiminea · Assimineidae · Assiminia · Austroassiminea · Cavernacmella · Conacmella · Cyclomorpha · Cyclotropis · Eussoia · Garrettia · Heteropoma · Kubaryia · Omphalotropis · Paludinella · Paludinellassiminea · Ponapella · Pseudassiminea · Pseudocyclotus · Pseudogibbula · Quadrasiella · Suterilla · Thaanumella · Tutuilana · Valvatorbis · Wrayanna
- Species: ZipcodeZoo has pages for 211 species and subspecies in the Family Assimineidae.
Genera
Acmella
A genus in the Kingdom Animalia. [more]
Anaglyphula
Angustassiminea
Assiminea
Assiminea is a genus of minute, salt marsh snails with an operculum, aquatic gastropod mollusks, or micromollusks, in the family Assimineidae. [more]
Assimineidae
Assiminia
Austroassiminea
Austroassiminea is a genus of minute, salt marsh snails with an operculum, aquatic gastropod mollusks, or micromollusks, in the family Assimineidae. [more]
Cavernacmella
Conacmella
Conacmella is a genus of minute, salt marsh snails with an operculum, aquatic gastropod mollusks, or micromollusks, in the family Assimineidae. [more]
Cyclomorpha
Cyclotropis
Eussoia
Garrettia
Shrubs. Leaves opposite, simple or 3-lobed. Cymes usually axillary, with monochasial branches. Flowers minute. Calyx campanulate, minutely 5-dentate or subtruncate. Corolla 2-lipped, lower lip 3-lobed, upper lip usually 2-lobed, lobes entire. Stamens didynamous, shorter or longer than corolla. Ovary 2-locular when young, becoming 4-locular; ovules 1 per locule. Stigma 2-cleft. Fruiting calyx inflated. Schizocarp globose, reticulately ridged, breaking into 4 mericarps each enclosing 1 seed.[1] [more]
Heteropoma
Heteropoma is a genus of minute, salt marsh snails with an operculum, aquatic gastropod mollusks, or micromollusks, in the family Assimineidae. [more]
Kubaryia
Kubaryia is a genus of in the Assimineidae family. It contains the following species: [more]
Omphalotropis
Omphalotropis is a genus of minute salt marsh snails with an operculum, terrestrial gastropod mollusks in the family Assimineidae. [more]
Paludinella
Paludinella is a genus of minute salt marsh snails with an operculum, aquatic gastropod mollusks or micromollusks, in the family Assimineidae. [more]
Paludinellassiminea
Ponapella
Ponapella is a genus of in the Assimineidae family. It contains the following species: [more]
Pseudassiminea
Pseudocyclotus
Pseudogibbula
Quadrasiella
Quadrasiella is a genus of in the Assimineidae family. It contains the following species: [more]
Suterilla
Thaanumella
Thaanumella is a genus of in the Assimineidae family. It contains the following species: [more]
Tutuilana
Valvatorbis
Wrayanna
Wrayanna is a genus of in the Assimineidae family. It contains the following species: [more]
More info about the Genus Wrayanna may be found here.
References
This article incorporates public domain text from the reference [1].
- ^ a b c d e f "Family summary for Assimineidae". AnimalBase, last change 15-08-2006, accessed 4 August 2010.
- ^ Strong E. E., Gargominy O., Ponder W. F. & Bouchet P. (2008). "Global Diversity of Gastropods (Gastropoda; Mollusca) in Freshwa ter". Hydrobiologia 595: 149-166. http://hdl.handle.net/10088/7390 doi:10.1007/s10750-007-9012-6.
- ^ Abbott, R.T. (1958). "The gastropod genus Assiminea in the Philippines". Proceedings of the Academy of Natural Sciences of Philadelphia 110: 213?278.
- ^ "Assimineidae". Integrated Taxonomic Information System. http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=71051.
- ^ Ingentaconnect
- ^ ZipCodeZoo
Bibliography
- P'ei Chien & Chen Shou-liang, eds. 1982. Verbenaceae. Fl. Reipubl. Popularis Sin. 65(1): 1-229.
Footnotes
- Shou-liang Chen & Michael G. Gilbert "Garrettia". in Flora of China Vol. 17 Page 34. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.
Sources
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- The distribution map on the Distribution tab comes from the Global Biodiversity Information Facility and is used with permission.
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