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Drechselschnecken ( German )

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Die Drechselschnecken (Acteonidae) sind eine Familie eher kleiner, ausschließlich mariner Schnecken in der Ordnung der Kopfschildschnecken (Cephalaspidea). Die weltweit verbreiteten räuberischen Schnecken haben eine solide äußere Schale.

Merkmale

Drechselschnecken haben eine kräftige, recht solide äußere Schale mit bis zu 8 Umgängen, in die sie sich im Gegensatz zu den meisten anderen Hinterkiemern ganz zurückziehen können. Ein horniges Operculum ist stets vorhanden. Der Kopfschild bildet ein Paar anterolateraler Lappen und ein Paar posterolateraler Segel, die einen Teil der Schale bedecken können. Es werden aber keine Parapodial-Lappen gebildet. Der hintere Mantellappen ist unauffällig. Der Mantel ist in der Schale zu einem spiraligen Blindsack verlängert. In der Mantelhöhle befindet sich eine Kieme. Der große Penis der zwittrigen Tiere kann nicht zurückgezogen werden. Kaumagenplatten fehlen. Die Radula der nordatlantischen Arten hat eine große Anzahl besonders kleiner Zähne. Das Nervensystem ist verdrehtnervig.

Die Schnecken der Familie Acteonidae ernähren sich als Fleischfresser von Polychaeten.

Die Schnecken sind Zwitter, die sich mit ihren Penissen gegenseitig begatten. Aus den Eiern schlüpfen Veliger-Larven, die sich von Plankton ernähren und später zu Jungschnecken metamorphosieren.

Beispielarten

Zu den Acteonidae gehört unter anderen die Drechselschnecke (Acteon tornatilis), die sich in der Nordsee vor allen von den Röhrenwürmern Lanice conchilega und Owenia fusiformis ernährt.

Zu den Actinoidae gehören auch die Gattung Trochactaeon, welche zu den typischen Fossilien Kreide der Gosau-Gruppe und der Nördlichen Kalkalpen gehört. Diese treten lokal massenhaft auf, stellenweise auch gesteinsbildend.

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Drei Exemplare von Trochactaeon conicus gleicher Größe und unterschiedlicher Schnittebenen. Oberkreide der Gosau-Gruppe, Rußbach. Alter ca. 100 Ma.

Systematik

Zur Familie gehören 28 Gattungen:[1]

Literatur

  • John D. Fish, Susan Fish: A Student's Guide to the Seashore. Cambridge University Press, Cambridge 2011. 540 Seiten. Opisthobranchs with an obvious external shell: Acteon tornatilis (Linnaeus), S. 226.
  • Philippe Bouchet & Jean-Pierre Rocroi: Part 2. Working classification of the Gastropoda. Malacologia, 47: 239–283, Ann Arbor 2005
  • Winston Ponder & David Lindberg, Towards a phylogeny of gastropod molluscs; an analysis using morphological characters. Zoological Journal of the Linnean Society, 119: 83–265, London 1997
  • Frank Riedel: Ursprung und Evolution der "höheren" Caenogastropoda. Berliner Geowissenschaftliche Abhandlungen, Reihe E, Band 32, Berlin 2000, 240 S., ISBN 3-89582-077-6.

Einzelnachweise

  1. WoRMS (2018): Acteonidae d’Orbigny, 1843. In: Bouchet, P.; Gofas, S.; Rosenberg, G. World Marine Mollusca database.
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Drechselschnecken: Brief Summary ( German )

provided by wikipedia DE

Die Drechselschnecken (Acteonidae) sind eine Familie eher kleiner, ausschließlich mariner Schnecken in der Ordnung der Kopfschildschnecken (Cephalaspidea). Die weltweit verbreiteten räuberischen Schnecken haben eine solide äußere Schale.

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Acteonidae

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Acteonidae, common name the "barrel bubble snails", is a family of small sea snails, marine gastropod mollusks of the informal group Lower Heterobranchia.[1]

Shell description

The shell is usually smaller than 25 mm.[2] The shell of these sand-dwelling micromollusks is small, but it is large enough to house the retracted soft parts including the entire mantle.

The aperture is elongated.[2] The narrow shell aperture, which is ovate and pointed on the top, can be closed with an operculum.

The thick shell is oviform to fusiform, with a short (sometimes sunken) conical apex. They have spiral sculpturing. The elongated aperture opens up from narrow at the posterior notch to enlarged at the base. The base of the columella has several characteristic plaits.

Anatomy

The radula has no central tooth, and there are five or six laterals on each side. The teeth are very similar in shape and size across the radula, which is specialised for a diet of polychaete worms.

The eggs are enclosed in a long, gelatinous mass, which is attached to the substrate with a short stalk.

The foot is with operculum.[2]

Ecology

Acteonidae occur in warm seas in shallow and deep water.[2]

Animals predate polychaetes.[2]

Genera

Genera within the family Acteonidae include:

Genus Acteon Montfort, 1810 - type genus

† Genus Acteonina d'Orbigny, 1850

Genus Bathyacteon Valdés, 2008

Genus Callostracon Repetto & Bianco, 2012

† Genus Colostracon Hamlin, 1884

Genus Crenilabium Cossmann, 1889

Genus Inopinodon Bouchet, 1975

Genus Japonactaeon Taki, 1956

Genus Liocarenus Harris & Burrows, 1891

Genus Lissacteon Monterosato, 1890

Genus Maxacteon Rudman, 1971

  • Maxacteon cratericulatus Hedley, 1906
    • Distribution : New Zealand
  • Maxacteon fabreanus (= Acteon fabreanus) Crosse, 1874
    • Distribution : Philippines
    • Length : 17–30 mm
    • Description : white shell with five whorls, each whorl filled with light brown bands covering the many spirals of each whorl.
  • Maxacteon flammeus (= Acteon flammeus) Gmelin, 1791
    • Distribution : Red Sea, tropical Indo-West Pacific
    • Length : 17 mm
    • Description : the headshield is developing secondary tentacles.
  • Maxacteon hancocki (synonym: Acteon hancocki) Rudman, 1971
  • Maxacteon milleri (synonym: Acteon milleri) Rudman, 1971

Genus Mysouffa Marcus, 1974

  • Mysouffa cumingii (= Acteon mysouffa cumingii) (A. Adams, 1855)
    • Distribution : Florida, Brazil
    • Length : 20 mm
  • Mysouffa turrita (Watson, 1883)
    • Distribution : Jamaica, Cuba, Caribbean
    • Length : 14 mm
    • Description : found at depths of around 700 m

Genus Neactaeonina Thiele, 1912

Genus Obrussena Iredale, 1930

Genus Ongleya Finlay & Marwick, 1937

Genus Ovulacteon Dall, 1889

  • Ovulacteon meekii Dall, 1889
    • Distribution : Cuba, Bahamas, East Brazil
    • Length : 5.5 mm
    • Description : found at depths of 360 to 820 m

Genus Pseudacteon Thiele, 1925. There is also a homonym genus Pseudacteon Coquillett, 1907, arthropods in the family Phoridae[3]

Genus Punctacteon Kuroda & Habe, 1961

  • Punctacteon amakusaensis T. Habe, 1949
    • Distribution : Indo-Pacific
  • Punctacteon cebuanus Lan, 1985
    • Distribution : Philippines
  • Punctacteon eloisae Abbott, 1973 Eloise’s acteon
    • Distribution : Red Sea, Oman.
    • Length : 25–38 mm
    • Description: sublittoral on sandy bottoms; cream-colored shell with 5 convex whorls, each whorl with many spiral windings; each whorl is filled with red-brown separate patterns with dark brown to black borders; similar to Maxacteon flammea.
  • Punctacteon fabreanus (H. Crosse, 1874)
    • Distribution : Philippines
    • Length : 17–30 mm
    • Description : white shell with five whorls, each whorl filled with light brown bands covering the many spirals of each whorl.
  • Punctacteon kajiyamai T. Habe, 1976
    • Distribution : Indo-Pacific
  • Punctacteon kawamurai T. Habe, 1952
    • Distribution : Japan
  • Punctacteon kirai T. Habe, 1949
    • Distribution : Indo-Pacific off the Philippines
    • Length : 20 mm
    • Description : shell whitish to brownish; five whorls, first whorl being the largest; each whorl has many spiral windings; outer lip is notched.
  • Punctacteon variegatus (synonym: Acteon variegatus) Bruguière, 1789 Pink-spotted acteon
    • Distribution : Philippines, West Australia.
    • Length : 9–27 mm
    • Description : sublittoral on sandy bottoms; convex, cream-colored shell with five whorls, each whorls is covered with transverse pink-colored to light brown patterns, without dark borders; whirls with prominent shoulder.

Genus Pupa Röding, 1798:

Genus Rictaxis Dall, 1871:

Genus Tenuiacteon Aldrich, 1921

Genus Tomlinula Strand, 1932

† Genus Volvaria Lamarck, 1801

Genera brought into synonymy
  • Actaeon Ersch & Gruber, 1818: synonym of Acteon Montfort, 1810
  • Actaeonidea Gabb, 1872: synonym of Rictaxis Dall, 1871
  • Buccinulus H. Adams & A. Adams, 1854: synonym of Pupa Röding, 1798
  • Callostracon sensu Nordsieck, 1972: synonym of † Colostracon Hamlin, 1884
  • Crenilabrum Kobelt, 1892: synonym of Crenilabium Cossmann, 1889
  • Dactylus Schumacher, 1817: synonym of Pupa Röding, 1798
  • Japonacteon [sic]: synonym of Japonactaeon Taki, 1956
  • Lissactaeon Monterosato, 1890: synonym of Crenilabium Cossmann, 1889
  • Neoacteonina [sic] : synonym of Neactaeonina Thiele, 1912
  • Obrussa Iredale, 1925: synonym of Obrussena Iredale, 1930
  • Solidula Fischer von Waldheim, 1807: synonym of Pupa Röding, 1798
  • Strigopupa Habe, 1958: synonym of Pupa Röding, 1798
  • Tornatella Lamarck, 1816: synonym of Acteon Montfort, 1810

References

Sources
  • Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). ISBN 0-915826-22-4. XII, 195 pp.
Notes
  1. ^ a b Bouchet, P. (2012). Acteonidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=155 on 2012-08-04
  2. ^ a b c d e "Family summary for Acteonidae". AnimalBase, last change 25-10-2007, accessed 3 August 2010
  3. ^ WoRMS (2010). Pseudacteon. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=183517 on 2012-08-04

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Acteonidae: Brief Summary

provided by wikipedia EN

Acteonidae, common name the "barrel bubble snails", is a family of small sea snails, marine gastropod mollusks of the informal group Lower Heterobranchia.

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Acteonidae ( French )

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Les Acteonidae forment une famille de mollusques hétérobranches marins appartenant à l'ordre des Cephalaspidea.

Liste des genres

Selon World Register of Marine Species (16 juin 2014)[3] :

Références taxinomiques

Notes et références

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Acteonidae: Brief Summary ( French )

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Les Acteonidae forment une famille de mollusques hétérobranches marins appartenant à l'ordre des Cephalaspidea.

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Acteonidae ( Italian )

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Acteonidae d'Orbigny, 1842 è una famiglia di molluschi gasteropodi.[1]

Descrizione

La famiglia comprende molluschi dotati di conchiglia generalmente di piccole dimensioni (piede dotato di opercolo chitinoso.[2][3]

Biologia

Sono animali bentonici, che trascorrono la maggior parte del tempo immersi nella sabbia, uscendo in superficie la notte.[3]

Si nutrono di policheti.[2][3]

Distribuzione e habitat

La famiglia ha una distribuzione cosmopolita essendo presente nelle acque tropicali e temperate dell'Indo-Pacifico e dell'Atlantico, nonché nel Mediterraneo.[4]

Tassonomia

La famiglia comprende i seguenti generi:[1]

Note

  1. ^ a b (EN) MolluscaBase eds. 2020, Acteonidae d'Orbigny, 1842, in WoRMS (World Register of Marine Species). URL consultato il 13/10/2020.
  2. ^ a b (EN) Acteonidae, su animalbase.uni-goettingen.de. URL consultato il 13/10/2020.
  3. ^ a b c (EN) Acteonidae, su seaslugsofhawaii.com. URL consultato il 13/10/2020.
  4. ^ (EN) Acteonidae, su obis.org. URL consultato il 13/10/2020.

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Acteonidae: Brief Summary ( Italian )

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Acteonidae d'Orbigny, 1842 è una famiglia di molluschi gasteropodi.

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Acteonidae ( Dutch; Flemish )

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Acteonidae zijn een familie van weekdieren uit de klasse van de Gastropoda (slakken).

Taxonomie

De volgende geslachten zijn bij de familie ingedeeld:

Bronnen, noten en/of referenties
  1. Salvador R.B. & Cunha C.M. (2016) Taxonomic revision of the fossil genera Bulimactaeon, Hemiauricula (= Liocarenus) and Nucleopsis, with description of a new Recent genus and species (Gastropoda: Heterobranchia: Acteonidae). Journal of Molluscan Studies. 82(3): 472-483.
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Acteonidae: Brief Summary ( Dutch; Flemish )

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Acteonidae zijn een familie van weekdieren uit de klasse van de Gastropoda (slakken).

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