Odostomia

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Odostomia
Odostomia - Sowerby (detail).jpg
Brachystomia eulimoides , Melanella conoidea , Odostomia conspicua , Jordaniella truncatula
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Family: Pyramidellidae
Genus: Odostomia
J. Fleming, 1813
Type species
Turbo plicatus
Montagu, G., 1803
Species

See text

Synonyms [1]
  • BrachystomiaMonterosato, 1884
  • Eulimella (Evalina)Dall & Bartsch, 1904
  • OdontostomaPhilippi, 1853 (Invalid: unjustified emendation of Odostomia)
  • OdontostomiaG.B. Sowerby I, 1839 (Invalid: unjustified emendation of Odostomia)
  • Odostomia (Brachystomia)Monterosato, 1884
  • † Odostomia (Cyclodostomia) Sacco, 1892
  • Odostomia (Odostomia) Fleming, 1813
  • Odostomia (Pyramistomia) Cossmann, 1921
  • PtychostomonLocard, 1886

Odostomia is the most speciose genus of minute sea snails, pyramidellid gastropod mollusks. This genus is placed in the family Pyramidellidae in the subfamily Odostomiinae. There are several hundred species in this diverse genus (Schander et al. 1999) [1] [2] [3]

Contents

Most of the description of species in the genus Odostomia was carried out by Dall & Bartsch in 1909. [4] Many of the described species are however suspected of being synonyms, or are proven synonyms.

The genus OdostomiaFleming, 1813 was used by 19th century authors, particularly in the European literature, for most of the smaller Pyramidellidae. It is still a catchall for most small pyramidellids lacking both axial and spiral sculpture. Some authors, e.g. Høisæter (2014), Peñas, Rolán & Swinnen (2014) and Giannuzzi-Savelli et al. (2014) who are here followed have attempted to redistribute some of the species, but there are still many species remaining unduly under Odostomia. For these, the database WoRMS has refrained from making new combinations not backed by (or implicit from) a published source but, unless otherwise noted, the species that were already "accepted" under a subgenus now raised to full genus have been marked as "accepted" under that full genus. [1]

The European and American species of Odostomia differ in several anatomical and shell characteristics. They are therefore likely to be assigned to different genera. [5]

Distribution

The genus Odostomia is common in all oceans from the tropics to the polar regions. It is mainly known from coastal areas and sandy shores, and is less common in the deep sea.

Description

There is little known about their life histories. Most species are only known from their shells.

Most species have a white of yellowish, minute, conical to ovate-conical shell, usually between 2 mm and 5 mm. The apex is rather obtuse or nipple-shaped, sinistrally or dextrally oriented to the teloconch. The protoconch is usually deeply immersed in the first of the succeeding turns. The shells are variously sculptured, usually with a microsculpture. The teleoconch contains in most cases between 4 and 6 whorls. The body whorl is usually large, comprising 50-60% of the total length. The aperture is suboval to ovate with the peristome incomplete behind. There is usually a tooth-like fold on the columella. The shells usually have a small umbilicus or none at all. [6] [7]

Life habits

The members of Odostomia are ectoparasites on other molluscs, and polychaetes. First they pierce the body wall with the buccal stylet and then feed on them by sucking blood with their buccal pump. They have become a pest of oysters, mussels, scallops and slipper limpets. [8] Most of the Odostomia species are host-specific, only a few are not. Odostomia scalaris MacGillivray, 1843 is an ectoparasite on a wide range of hosts but especially known as a pest of mussels. Odostomia turrita Hanley, 1844 has been found on the European lobster Homarus gammarus (Linnaeus, 1758). [9]

Species

Related Research Articles

<span class="mw-page-title-main">Pyramidellidae</span> Family of sea snails

Pyramidellidae, common name the pyram family, or pyramid shells, is a voluminous taxonomic family of mostly small and minute ectoparasitic sea snails, marine heterobranch gastropod molluscs. The great majority of species of pyrams are micromolluscs.

<span class="mw-page-title-main">Odostomiinae</span> Subfamily of gastropods

Odostomiinae, Odostomia snails and their allies, is a taxonomic subfamily of minute parasitic sea snails. These are marine heterobranch gastropod mollusks, or micromollusks, in the family Pyramidellidae.

<span class="mw-page-title-main">Turbonillinae</span> Subfamily of gastropods

Turbonillinae is a subfamily of mostly minute parasitic sea snails, marine gastropod molluscs in the family Pyramidellidae, the pyrams and their allies.

<span class="mw-page-title-main">Chrysallidini</span> Tribe of molluscs

Chrysallidinae is a taxonomic group of very small sea snails, marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

<i>Tiberia</i> Genus of gastropods

Tiberia is a genus of minute parasitic sea snails, marine gastropod molluscs in the family Pyramidellidae, the pyrams and their allies. Tiberia is the only genus in the tribe Tiberiini.

<span class="mw-page-title-main">Pyramidellinae</span> Subfamily of sea snails

Pyramidellinae is a taxonomic subfamily of minute sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.

Cingulina is a genus of small sea snails, pyramidellid gastropod mollusks. in the family Pyramidellidae, the pyrams and their allies.

<i>Trabecula</i> (gastropod) Genus of gastropods

Trabecula is a genus of very small sea snails, marine gastropod molluscs or micromolluscs in the family Pyramidellidae, the pyrams and their allies, and the subfamily Chrysallidinae, a large taxon of minute marine gastropods with an intorted protoconch.

Fargoa is a genus of very small sea snails, marine gastropod mollusks in the tribe Chrysallidini within the family Pyramidellidae.

<i>Chrysallida</i> Genus of gastropods

Chrysallida is a speciose genus of minute sea snails, pyramidellid gastropod mollusks or micromollusks in the family Pyramidellidae within the tribe Chrysallidini.

<i>Babella</i> Genus of gastropods

Babella is a genus of very small sea snails, pyramidellid gastropod mollusks or micromollusks in the family Pyramidellidae within the tribe Chrysallidini.

<i>Besla</i> Genus of gastropods

Besla is a small genus of miniature sea snails, pyramidellid gastropod mollusks in the family Pyramidellidae within the tribe Chrysallidini.

<i>Egila</i> Genus of gastropods

Egila is a genus of small sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.

Iolaea is a genus of small sea snails, pyramidellid gastropod mollusks in the tribe Chrysallidini within the family Pyramidellidae.

Kleinella is a small genus of sea snails, pyramidellid gastropod mollusk or micromollusks. This genus is currently placed in the subfamily Turbonillinae.

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

Menestho is a genus of very small sea snails, pyramidellid gastropod mollusks, or micromollusks.

<i>Pyramidella</i> Genus of molluscs

Pyramidella is a genus of minute to medium-sized sea snails, marine gastropod mollusk in the subfamily Pyramidellinae of the family Pyramidellidae, the pyrams and their allies.

<i>Aartsenia</i> Genus of gastropods

Aartsenia is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomella</i> Genus of gastropods

Odostomella is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.

References

  1. 1 2 3 Bouchet, P.; Gofas, S. (2011). Odostomia Fleming, 1813. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138413 on 3 June 2012
  2. ↑ Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180-213
  3. ↑ Spencer, H.; Marshall. B. (2009). All Mollusca except Opisthobranchia. In: Gordon, D. (Ed.) (2009). New Zealand Inventory of Biodiversity. Volume One: Kingdom Animalia. 584 pp
  4. ↑ Dall & Bartsch, A Monograph of West American Pyramidellid Mollusks, United States National Museum Bulletin 68, 1909
  5. ↑ National Audubon Society (1996), Field Guide to North American Seashells, ISBN   0-394-51913-2
  6. ↑ Macgillivray, William , History of the molluscous animals of Scotland; London, 1844
  7. ↑ Rachel Collin & John B. Wise (1996), Morphology and development of Odostomia columbiana Dall & Bartsch, 1909 (Pyramidellidae); Implications for the Evolution of gastropod Development, Biol. Bull. 192: 243-252. (April, 1997)
  8. ↑ H. A. Cole and D. A. Hancock, Odostomia as a pest of oysters and mussels; Journal of the Marine Biological Association of the United Kingdom (1955), 34 : pp 25-31
  9. ↑ Sneli, J.-A. (1972). Odostomia turrita found on Homarus gammarus Nautilus: Maandblad van het Koninklijk Belgisch Zeemanscollege = Nautilus: Revue mensuelle du Collège Royal Maritime Belge 86(1): 23

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