Acteonidae

Acteonidae
shell of Adam's baby bubble, Japonactaeon punctostriatus
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia
informal group Lower Heterobranchia
Superfamily: Acteonoidea
Family: Acteonidae
d'Orbigny, 1843
Type genus
Acteon
d'Orbigny, 1843
Genera

See text.

Synonyms[1]
  • Pupidae
  • Solidulidae
  • Tornatellidae

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 swallow 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

shell of Maxacteon fabreanus

Genus Mysouffa Marcus, 1974

Genus Neactaeonina Thiele, 1912

Genus Obrussena Iredale, 1930

Genus Ongleya Finlay & Marwick, 1937

Genus Ovulacteon Dall, 1889

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

Genus Punctacteon Kuroda & Habe, 1961

Genus Pupa Röding, 1798:

Genus Rictaxis Dall, 1871:

The genus name is derived from Latin words, meaning “open mouth”, and “axis” referring to the columella.

Genus Tenuiacteon Aldrich, 1921

Genus Tomlinula Strand, 1932

† Genus Volvaria Lamarck, 1801

Genera brought into synonymy

References

Sources
Notes
  1. 1 2 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. 1 2 3 4 5 "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

External links

Wikimedia Commons has media related to Acteonidae.
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