Trigonostoma Explained

Trigonostoma is a genus of sea snails, marine gastropod mollusks in the family Cancellariidae, the nutmeg snails.

Trigonostoma is also the name given to a trematode genus in the family Aspidogastridae, that is actually a synonym of the genus Multicalyx Faust & Tang, 1936

Species

According to the World Register of Marine Species (WoRMS) the following species with valid names are included within the genus Trigonostoma :

• † Trigonostoma ampullaceum (Brocchi, 1814)
• Trigonostoma antiquatum (Hinds, 1843) - antique nutmeg
• † Trigonostoma barnardi A. W. Janssen, 1984
• Trigonostoma breve (G.B. Sowerby I, 1832a)
• Trigonostoma bullatum (G.B. Sowerby I, 1832a) - bubble nutmeg
• Trigonostoma chui Yen, 1936
• Trigonostoma diamantinum Garrard, 1975
• Trigonostoma elegantulum (M. Smith, 1947) little elegant nutmeg
• † Trigonostoma exampullaceum (Sacco, 1894)
• † Trigonostoma exgeslini (Sacco, 1894)
• † Trigonostoma extractrix (Boettger, 1906)
• Trigonostoma gofasi Verhecken, 2007
• Trigonostoma goniostoma (G.B. Sowerby I, 1832a) - angle-mouth nutmeg
• Trigonostoma iota Garrard, 1975
• Trigonostoma kilburni Petit & Harasewych, 2000
• Trigonostoma lamberti (Souverbie, 1870 in Souverbie & Montrouzier)
• Trigonostoma laseroni (Iredale, 1936) - Laseron's nutmeg
• † Trigonostoma lindeni A. W. Janssen, 1984
• Trigonostoma milleri (Burch, 1949) - Miller's nutmeg
• Trigonostoma mozambicense Petit & Harasewych, 2002
• Trigonostoma nitidum (A. Adams, 1855)
• † Trigonostoma parvotriangula Sacco, 1894
• † Trigonostoma protrigonostoma (Sacco, 1894)
• † Trigonostoma pseudumbilicare Peyrot, 1928
• Trigonostoma pygmaeum (C.B. Adams, 1852)
• Trigonostoma rugosum (Lamarck, 1822)
• Trigonostoma scala (Gmelin, 1791)
• Trigonostoma scalare (Gmelin, 1791)
• † Trigonostoma schroeckingeri (R. Hoernes & Auinger, 1890)
• Trigonostoma semidisjunctum (G.B. Sowerby II, 1849a) - disjunct nutmeg
• † Trigonostoma subsuturale (d'Orbigny, 1852)
• Trigonostoma tenerum (Philippi, 1848) - Philippi's nutmeg
• Trigonostoma tessella Garrard, 1975
• Trigonostoma thysthlon Petit & Harasewych, 1987
• Trigonostoma tryblium Bouchet & Petit, 2008
• Trigonostoma tuberculosum (G.B. Sowerby I, 1832a)
• † Trigonostoma umbilicare'' (Brocchi, 1814)

Subgenus Trigonostoma Blainville, 1825

• Trigonostoma pellucida - triangular nutmeg

Species brought into synonymy:

• Trigonostoma bicolor (Hinds, 1843) : synonym of Scalptia bicolor (Hinds, 1843)
• Trigonostoma campbelli Shasky, 1961 accepted as Axelella campbelli (Shasky, 1961)
• † Trigonostoma christiei Finlay, 1924 accepted as † Scalptia christiei (Finlay, 1924)
• Trigonostoma costiferum (G.B. Sowerby I, 1832): synonym of Scalptia costifera (G. B. Sowerby I, 1832)
• Trigonostoma damasoi T. Cossignani, 2015 accepted as Trigonostoma gofasi Verhecken, 2007
• Trigonostoma foveolata [sic]: synonym of Scalptia foveolata (G.B. Sowerby II, 1849)
• Trigonostoma rugosum (Lamarck, 1822) accepted as Bivetopsia rugosa (Lamarck, 1822)
• Trigonostoma scalariformis (Lamarck, 1822) accepted as Scalptia scalariformis (Lamarck, 1822)
• Trigonostoma semidisjuncta [sic]: synonym of Trigonostoma semidisjunctum (G.B. Sowerby II, 1849)
• † Trigonostoma thisbe Olsson, 1964 accepted as † Ventrilia thisbe (Olsson, 1964)
• † Trigonostoma triumpha Olsson, 1964 accepted as † Ventrilia triumpha (Olsson, 1964)
• Trigonostoma tuberculosa [sic]: synonym of Trigonostoma tuberculosum (G.B. Sowerby I, 1832)
• Trigonostoma vinnulum Iredale, 1925: synonym of Trigonaphera vinnulum (Iredale, 1925) (original combination)
• † Trigonostoma waikaiaensis Finlay, 1924 accepted as † Scalptia waikaiaensis (Finlay, 1924)

References

• Hemmen J. (2007). Recent Cancellariidae.Annotated and illustrated catalogue of Recent Cancellariidae. Privately published, Wiesbaden. 428 pp.
• Bouchet P. & Petit R.E. (2008). New species and new records of southwest Pacific Cancellariidae. The Nautilus 122(1): 1-18.

External links

• Perry, G. (1811). Conchology, or the natural history of shells: containing a new arrangement of the genera and species, illustrated by coloured engravings executed from the natural specimens, and including the latest discoveries. 4 pp., 61 plates. London
• Blainville, H. M. D. de. (1825-1827). Manuel de malacologie et de conchyliologie. Paris, Levrault 1-647
• Iredale, T. (1936). Australian molluscan notes, no. 2. Records of the Australian Museum. 19(5): 267-340, pls 20-24