Overview

Brief Summary

The fig shells, a small group of relatively large marine snails, make up the small family Ficidae (Gastropoda), which is comprised of two genera.  Genus Ficus has 10 species, found from the intertidal to depths up to 1000m (3000 feet) in warm and temperate waters around the world; the less common genus Thalassocyon inhabits the Southern Hemisphere, found only in deep waters (up to 3000 m; 10,000 feet) off the coast of South Africa, New Zealand, and Amsterdam Island.  Thalassocyon includes between 1-3 species, for which the synonymy is unclear (Warén and Bouchet 1990 and Riedel 2000, as cited in Vos 2013).  The two genera have been revised as sister taxa in family Ficidae based of shared radula shape and the ridge (keel) along the edge of their body whorl; Thalassocyon was originally classified into gastropod family Cymatiidae.

(Beu 1969; Neo 2010; Vos 2013)

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
Specimen Records:21
Specimens with Sequences:14
Specimens with Barcodes:14
Species:6
Species With Barcodes:3
Public Records:14
Public Species:3
Public BINs:6
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Barcode data

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Wikipedia

Ficidae

Ficidae, common name the fig shells are a family of medium to large marine gastropods. It is the only family in the superfamily Ficoidea.

According to taxonomy of the Gastropoda by Bouchet & Rocroi (2005) the family Ficidae has no subfamilies.

The shells of these snails are shaped rather like figs or pears, hence the common name.

The Ficidae were previously included in the Tonnaceae (now Tonnoidea) along with the Tonnidae and Cassididae.[1][2]

Contents

Distribution

The family is found worldwide, mostly in tropical and subtropical silt and mud covered neritic zones.

Shell description

The shells of species in the Ficidae are thin but strong. They have a large aperture and a long siphonal canal, but an extremely low spire which does not protrude above the outline of the body whorl.

Fig shells very often have subdued spiral ribbing, and are subtly patterned in shades of very pale brown and beige.

Genera

Genera within the family Ficidae include:

Genera brought into synonymy
  • Ficula Swainson, 1835 : synonym of Ficus Röding, 1798
  • Pirula Montfort, 1810 : synonym of Ficus Röding, 1798
  • Pyrula Lamarck, 1799 : synonym of Ficus Röding, 1798
  • Sycotypus Gray, 1847 : synonym of Ficus Röding, 1798

References

  1. ^ Keen, A.Myra 1958; Sea Shells of Tropical West America, Stanford University Press.
  2. ^ Moore, Lalicker, and Fischer 1952; Invertebrate Fossils, McGraw-Hill Book.
  3. ^ WoRMS (2009). Ficus Röding, 1798. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=205605 on 2010-05-20
  4. ^ "Austroficopsis". The Paleobiology Database, accessed 20 May 2010.
  5. ^ "Ficopsis". The Paleobiology Database, accessed 20 May 2010.
  6. ^ "Fusoficula". The Paleobiology Database, accessed 20 May 2010.
  7. ^ "Gonysycon". The Paleobiology Database, accessed 20 May 2010.
  8. ^ WoRMS (2010). Thalassocyon Barnard, 1960. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=447827 on 2010-05-20

Further reading

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