Umboniinae

Umboniinae
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Trochidae
Subfamily: Umboniinae
H. Adams & A. Adams, 1854 (1840)
Synonyms
  • Bankiviini Hickman & J. H. McLean, 1990
  • Isandini Hickman, 2003
  • Lirulariinae Hickman & J. H. McLean, 1990
  • Monileini Hickman & J. H. McLean, 1990
  • Talopiidae Finlay, 1928
  • Talopiini Finlay, 1928
  • Umboniidae H. Adams & A. Adams, 1854 (1840) superseded rank

The Umboniinae are a taxonomic subfamily of very small to large sea snails, marine gastropod molluscs in the family Trochidae, common name top snails.

General characteristics

(Original description) The rostrum is rudimentary, while the frontal lobes are greatly developed. The operculum is horny and thin, composed of many gradually enlarging whorls, and is finely ciliated along its outer edge. The shell is orbicular, depressed, polished, and porcellanous, with the umbilical region often covered by a callous deposit.

The Umboniinae H. Adams & A. Adams, 1854 (1840) comprise a well-defined subfamily within the Trochidae Rafinesque, 1815, characterised primarily by their unusual radula with reduced teeth in the central field. Additional distinctive morphological features are also commonly present, such as long up-curving eyestalks with large eyes, a subterminally papillate snout and a medially bifid propodium with pinched-in, trigonal antero-lateral lobes.

Genera

Synonyms

References

  1. ↑ MolluscaBase eds. (2026). MolluscaBase. Umboniinae H. Adams & A. Adams, 1854 (1840). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=382177 on 2026-05-28
  2. ↑ Adams, H. & Adams, A. (1853–1858). The genera of Recent Mollusca; arranged according to their organization. London: van Voorst. p. 407. Retrieved 23 June 2026.{{cite book}}: CS1 maint: multiple names: authors list (link)Public Domain This article incorporates text from this source, which is in the public domain.
  3. ↑ Herbert, D.G. (2024). "The Umboniinae (Mollusca: Gastropoda: Trochidae) of New Caledonia, with descriptions of two new genera and eight new species, plus an additional new species from the Bismarck Sea". European Journal of Taxonomy (973): 2.Public Domain This article incorporates text from this source, which is under a CC BY 4.0 license.
  4. ↑ Hickman, C.S. & McLean, J.H. (1990). Systematic revision and suprageneric classification of trochacean gastropods. Science Series of Natural History Museum of Los Angeles County. 35: 1-169.

Sources