Marginellidae

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Marginellidae
MargMosaica.jpg
A live individual of Marginella mosaica , head end towards the right
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Volutoidea
Family: Marginellidae
Fleming, 1828
Diversity [1]
2 freshwater species, others are marine

Marginellidae, or the margin shells, are a taxonomic family of small, often colorful, sea snails, marine gastropod molluscs in the clade Neogastropoda.

Contents

Taxonomy

The higher classification of the family Marginellidae has long been in a state of confusion. Many popular works still treat all members of this family under the single genus Marginella, basing them primarily on superficial similarities of the shell.

The confusion over the classification stems from the fact that the earlier classifications were based rather crudely on shell characters. Although many good differential shell characters do exist within this group, those characters were generally misinterpreted or not recognized as significant. Such information as did exist on the radulae and the external anatomy of the living animals was widely scattered in the scientific literature, and internal anatomical descriptions were not available until fairly recently.

In 2019 a new molecular phylogeny of marginelliform gastropods has been established by Fedosov A.E., Caballer Gutierrez M., Buge B., Sorokin P.V., Puillandre N., Bouchet P. [2]

Shell description

The shell of Marginellidae is usually small, but varies in different species from minute to medium-sized. The external color of the shell can be white, cream, yellow, orange, red, or brown, and can be uniformly colored, or patterned in various ways. The protoconch is paucispiral. The lip of the shell is thickened, and can be smooth or denticulate. An external varix may be present or absent, a siphonal notch may be present or absent. The columella may have 2-6 plications. The operculum is absent in this family.

Genera

Subfamily Austroginellinae G. A. Coovert & H. K. Coovert, 1995
Subfamily Marginellinae J. Fleming, 1828
Subfamily PruninaeG. A. Coovert & H. K. Coovert, 1995
Subfamily [unassigned] Marginellidae (temporary name)

Synonyms

Related Research Articles

<i>Marginella</i> genus of molluscs

Marginella is a genus of small tropical and temperate sea snails, marine gastropod molluscs in the family Marginellidae, the margin snails. It is the type genus of the family.

<i>Gibberula</i> Genus of sea snails

Gibberula is a genus of minute sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae, previously placed in the family Marginellidae, the margin shells or marginellids.

<i>Granulina</i> genus of molluscs

Granulina is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Granulinidae.

<i>Volvarina</i> genus of molluscs

Volvarina is a genus of small to very small sea snails, marine gastropod molluscs in the family Marginellidae, the margin shells.

Cystiscidae Family of sea snails

Cystiscidae is a taxonomic family of minute sea snails, marine gastropod mollusks or micromollusks.

<i>Plesiocystiscus</i> genus of molluscs

Plesiocystiscus is a genus of minute predatory sea snails, marine gastropod mollusks or micromollusks in the family Cystiscidae.

<i>Extra extra</i> species of mollusc

Extra extra or Marginella extra is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae. Some malacologists place this genus more simply in the family Marginellidae.

Persiculinae Subfamily of sea snails

Persiculinae is a taxonomic subfamily of minute to small predatory sea snails, marine gastropod mollusks. This subfamily includes several species which are micromollusks.

<i>Bullata</i> genus of molluscs

Bullata is a genus of small to large sea snails, marine gastropod mollusks in the family Marginellidae, the margin snails.

Cancellariidae Family of sea snails

Cancellariidae, common name the nutmeg snails or nutmeg shells, are a family of small to medium-large sea snails, marine gastropod mollusks in the clade Neogastropoda. Some of the shells of the species in this family resemble a nutmeg seed.

Mangeliidae is a monophyletic family of small to medium-sized, predatory sea snails, marine gastropod mollusks in the superfamily Conoidea.

Canalispira is a genus of very small sea snails, marine gastropod mollusks or micromollusks in the family Cystiscidae.

<i>Alaginella</i> genus of molluscs

Alaginella is a genus of sea snails, marine gastropod mollusks in the family Marginellidae.

<i>Cryptospira</i> genus of molluscs

Cryptospira is a genus of sea snails, marine gastropod mollusks in the family Marginellidae, the margin snails.

Dentimargo is a genus of sea snails, marine gastropod mollusks in the family Marginellidae, the margin snails.

<i>Hyalina</i> genus of molluscs

Hyalina is a genus of sea snails, marine gastropod mollusks in the family Marginellidae, the margin snails.

<i>Mesoginella</i> genus of molluscs

Mesoginella is a genus of sea snails, marine gastropod mollusks in the family Marginellidae, the margin snails.

<i>Prunum</i> genus of molluscs

Prunum is a genus of sea snails, marine gastropod mollusks in the family Marginellidae, the margin snails.

Marginellinae subfamily of molluscs

Marginellinae is a taxonomic subfamily within the larger family of Marginellidae, a group of small sea snails, marine gastropod molluscs in the superfamily Muricoidea.

Granulinidae are a family of small to medium-large sea snails, marine gastropod mollusks in the clade Neogastropoda.

References

  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. Fedosov A.E., Caballer Gutierrez M., Buge B., Sorokin P.V., Puillandre N., Bouchet P. (2019 [20 September). Mapping the missing branch on the neogastropod tree of life: molecular phylogeny of marginelliform gastropods. Journal of Molluscan Studies]

Further reading

1962. A new genus in the family Marginellidae. Proceedings of the Malacological Society of London 35(1):14-15.
1963. The family position of Afrivoluta pringlei Tomlin. The Journal of Conchology 25(5):198-199.
1966. The West American Marginellidae. The Veliger 8(4): 276-299, pls. 48-51.
1976. Status of the genus Hyalina Schumacher, 1817 (Mollusca: Gastropoda). Journal of Mollucan Studies 42(2):217-222.
1969a. On the identity of Criptospira glauca and the related Cryptospira ventricosa, (Gastropoda: Marginellidae). Basteria 33(5-6):85-92.
1969b. Notes om Marginella spryi. Basteria 39(1-2):23-27.
1975. Marginella orstomi. A new species from deeper water off the coast of West Africa (gastropoda, Marginellidae). Bulletin Zoologisch Museum, Universiteit von Amsterdam vol.4 No.12
1986a. Type species list. Marginella Marginalia 1(1):1-3.
1986b. Generic group names. Marginella Marginalia 1(2):5-7.
1987a. The genus Afrivoluta and a review of the type species Afrivoluta pringlei Tomlin, 1947. Marginella Marginalia 2(1):1-8.
1987b. Addenda to Afrivoluta paper. Marginella Marginalia 2(6):39
1987c. Propor usage of the generic names Haloginella, Hyalina, and Volvarina with a diagnosis of the genus Haloginella. Marginella Marginalia 3(1):1-7
1987d. The external anatomy of two species of Caribbean Marginellidae. Marginella Marginalia 3(5):33-37.
1988a. Type species of the genera Austroginella and Mesoginella and their synonyms. Marginella Marginalia 4(2/3):9-26.
1988b. Marginellidae of Florida, Part II. Prunum succinea with a discussion of Prunum and Volvarina. Marginella Marginalia 4(5)_35-42, pl. 1.
1988. The marginellids of São Tomé, West Africa. Journal of Conchology 33(1):1-30, pls. 1-2.
1992. The Marginellidae of Angola: The genus Volvarina. The Journal of Conchology 34(4):187-198
1994. The Marginellidae of Angola: The genus Marginella. Journal of Conchology 35:103-119
1852. Description of new species of Marginella, with notes on sundry species of Marginella and Cypraea. Annals of the Lyceum of Natural History in New York 5:224-228.
1870. Catalogue of the known species, recent and fossil, of the family Marginellidae. American Journal of Concholoigy 6(2):215-269.