Gibberula

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Gibberula
Gibberula celerae
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Family: Cystiscidae
Subfamily: Cystiscinae
Genus: Gibberula
Swainson, 1840
Type species
Marginella zonata
Swainson, 1840
Synonyms[1]
  • Cryptospira (Gibberula) Swainson, 1840
  • Diluculum Barnard, 1962
  • Epiginella Laseron, 1957[2]
  • Granula Jousseaume, 1875[3]
  • Kogomea Habe, 1951
  • Lataginella Laseron, 1957[2]
  • Marginella (Gibberula) Swainson, 1840
  • Marginella (Granula) Jousseaume, 1875
  • Marginella (Kogomea) Habe, 1951
  • Phyloginella Laseron, 1957[2]
  • Vetaginella Laseron, 1957[2]

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.[1]

(Note: Gastropod taxonomy has been in flux for many years. This is especially true currently, because of new research in molecular phylogeny. Because of all this ongoing change, different reliable sources can yield very different classifications, especially within certain poorly understood groups.)

Other genus-group names are available for small shells resembling Gibberula. These include Granula Jousseaume, 1875 and Kogomea Habe, 1951. They are distinguished from Gibberula only on the basis of smaller size and other rather tenuous conchological differentiations.

The shell of this genus is 1.5 to 10 mm in length, ovoid, stout, with a small, low spire. The outer lip is thickened but without an external varix. It is usually denticulated inside. The columella has several plaits on a thickened rim, decreasing in size towards the posterior end. The siphonal canal is distinctly notched.

Animal

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