Umbonium
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| Umbonium | |
|---|---|
 | |
| Two views of a shell of Umbonium giganteum | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Vetigastropoda |
| Superfamily: | Trochoidea |
| Family: | Trochidae |
| Subfamily: | Umboniinae |
| Tribe: | Umboniini |
| Genus: | Umbonium Link, 1807 [1] |
| Type species | |
| Umbonium (Umbonium) vestiarium Linnaeus, C., 1758 | |
| Species | |
|
See text | |
| Synonyms[2] | |
|
Suchium Makiyama, 1924 | |
Umbonium, sometimes known as the "button top shells", is a genus of sea snails, marine gastropod molluscs in the family Trochidae, the top snails. [2]
Shell description
The shells of the species in this genus are low-spired and shaped like a button. The orbicular shell is depressed and imperforated. It has a very thin pearly layer inside. The whorls are flattened above, bright, smooth or spirally grooved. The aperture is wider than high. The thin outer lip is acute. The umbilicus of the shell is often completely covered with a thick and smooth callus. [3]
Species
Species in the genus Umbonium include:
- Umbonium bairdii Dall, 1889 [4]
- Umbonium callosum Sowerby
- Umbonium capillata A. A. Gould, 1861
- Umbonium conicum (A. Adams & Reeve, 1850)
- Umbonium costatum (Valenciennes in Kiener, 1838 in 1834-50)
- Umbonium elegans (Kiener, 1838)
- Umbonium eloiseae Dance, Moolenbeek & Dekker, 1992
- Umbonium fenestrata T. Kuroda,
- Umbonium floccata G. B. Sowerby III, 1903
- Umbonium giganteum (Lesson, 1833 in 1832-35)
- Umbonium guamensis J. R. C. Quoy & J. P. Gaimard, 1834
- Umbonium guamensis selenomphala H. A. Pilsbry, 1905
- Umbonium moniliferum (Lamarck, 1822 in 1815-22)
- Umbonium nitida A. Adams, 1863
- Umbonium omphalotropis A. Adams, 1863
- Umbonium polita A. Adams, 1862
- Umbonium pulchella A. Adams in H. & A. Adams, 1854
- Umbonium roseopunctata T. Kuroda & T. Kinoshita
- Umbonium rufula A. A. Gould, 1861
- Umbonium sagittata (Hinds, 1845)
- Umbonium sanguinea H. A. Pilsbry, 1905
- Umbonium suturale (Lamarck, 1822 in 1815-22)
- Umbonium thomasi (Crosse, 1862-a)
- Umbonium vestiarium (Linnaeus, 1758)
- Species brought into synonymy
- Umbonium striolatum Adams A., 1855: synonym of Ethalia striolata (A. Adams, 1855)
- Umbonium zelandica (Hombron & Jacquinot,1855): synonym of Zethalia zelandica (Hombron & Jacquinot, 1855)
References
- ↑ Link J. H. F. (1807). Beschr. Nat. Samml. Univ. Rostock (3): 136.
- ↑ 2.0 2.1 Bouchet, P. (2012). Umbonium Link, 1807. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=205005 on 2012-12-04
- ↑ Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
- ↑ Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
- Williams S.T., Karube S. & Ozawa T. (2008) Molecular systematics of Vetigastropoda: Trochidae, Turbinidae and Trochoidea redefined. Zoologica Scripta 37: 483–506.
External links
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