World Library  
Flag as Inappropriate
Email this Article


Article Id: WHEBN0010204526
Reproduction Date:

Title: Trochus  
Author: World Heritage Encyclopedia
Language: English
Subject: MOU Box, Economy of Wallis and Futuna, Economy of the Federated States of Micronesia, Economy of Palau, Fishing in Vanuatu
Publisher: World Heritage Encyclopedia


Five views of a shell of Trochus maculatus
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Superfamily: Trochoidea (superfamily)
Family: Trochidae
Genus: Trochus
Linnaeus, 1758

See text

  • Infundibulum (Lamprostoma) Swainson, 1840
  • Lamprostoma Swainson, 1840
  • Polydonta Schumacher, 1817
  • Trochus (Camelotrochus) B. A. Marshall, 1998
  • Trochus (Polydonta) Schumacher, 1817
  • Trochus (Trochus) Linnaeus, 1758
  • Trochus (Zizyphinus) Gray, 1847

Trochus is a genus of medium-sized to large, top-shaped sea snails with an operculum and a pearly inside to their shells, marine gastropod molluscs in the family Trochidae, the top snails.[1]

When the word "trochus" or "Trochus" is used in reference to fishing sea snails for commercial purposes, the usual species targeted is Tectus niloticus, which is valued for its nacre or mother of pearl layer, which was traditionally made into items such as pearl buttons and jewelry. Tectus niloticus is no longer classified as a Trochus species, and it is no longer classified in the family Trochidae; it is now placed in the family Tegulidae.


The name Trochus, according to P. Fischer[2] was used for the first time by Guillaume Rondelet, in 1558, who assembled under this title a rather miscellaneous assortment of univalves. Linnaeus' genus Trochus is composed principally of true Trochidae, but it is now viewed as having contained species of several other very different families.

[3] Further revisions have narrowed down the number of species in this genus, and most names have become synonyms.

Shell description

Sea snails in the genus Trochus have large, thick, solid shells that have a broadly conical [3]

The interior of the shell is pearly and iridescent because of a thick layer of nacre (mother of pearl).


Species within the genus Trochus include:[1]

The following species were brought into synonymy:[1]

The following species are nomina dubia (names of unknown or doubtful application)
  • Trochus bicinctus Philippi, 1849
  • Trochus quadricinctus Mühlfeld, 1824
Species inquirenda
  • Trochus artensis P. Fischer, 1878
  • Trochus fabrei Montrouzier in Fischer, 1878
  • Trochus incarnatus Philippi, 1846
  • Trochus pulchellus Philippi, 1846
  • Trochus reevei Montrouzier in Souverbie & Montrouzier, 1866
  • Trochus rhodomphalus Souverbie in Souverbie & Montrouzier, 1875
  • Trochus saga Philippi, 1846
  • Trochus scrobiculatus Souverbie in Souverbie & Montrouzier, 1866
  • Trochus sublaevis Geinitz, 1842
  • Trochus subviridis Philippi, 1848


  1. ^ a b c d e Bouchet, P.; Gofas, S. (2010). Trochus Linnaeus, 1758. Accessed through: World Register of Marine Species at on 5 December 2012
  2. ^ P. Fischer. Monog. Genre Troque, in Kiener's Coquilles Vivantes, Paris, 1880.
  3. ^ a b Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
  • Linnaeus, C. (1758). Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Editio decima, reformata. Laurentius Salvius: Holmiae. ii, 824 pp.
  • A. Adams, Contributions toward a Monograph of the Trochidae, in Proc. Zool. Soc, 1851, pp. 150–192.
  • R- A. Philippi, Monograph of Trochus in Syst. Conchylien Cabinet, ed. 2 (1846 to about 1856).
  • Lovell Reeve, In Conchologia Iconica vol. xiii. (1861) (a very incomplete work)
  • Herbert G.G. (1993). Revision of the Trochinae, tribe Trochini (Gastropoda: Trochidae) of southern Africa. Annals of the natal Museum 34(2):239-308.
  • Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213

Further reading

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.