Biology:Trophon geversianus

Short description: Species of gastropod

Trophon geversianus
Trophon geversianus acordonada
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Muricidae
Genus:	Trophon
Species:	T. geversianus
Binomial name
Trophon geversianus (Pallas, 1774)
Synonyms
Buccinum fimbriatum Martyn, 1784 Buccinum geversianus Pallas, 1774 Fusus inflatus Hombron, J.B. & C.H. Jacquinot, 1852 not Dunker, 1847 Fusus intermedius Hupé in Gay, 1854 Murex fimbriatus [Lightfoot], 1786 Murex foliatus Schumacher, 1817 Murex magellanicus Gmelin, 1791 Murex peruvianus Lamarck, 1816 Murex varians d'Orbigny, 1841 Murex ventricosa Molina, 1810 Polyplex bulbosa Perry, 1811 Trophon geversianus var. calva Kobelt, 1878 Trophon geversianus var. lirata Kobelt, 1878 Trophon philippianus Dunker in Kobelt, 1878 Trophon varians (d'Orbigny, 1841)

Trophon geversianus, commonly known as Gevers's Trophon, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

The two varieties Trophon geversianus var. calva Kobelt, 1878 and Trophon geversianus var. lirata Kobelt, 1878 have been synonymized with Trophon geversianus (Pallas, 1774)

Description

The size of an adult shell varies between 30 mm and 111 mm. Highly variable. Aperture greater than 1/2 of length, brown to violaceous (always coloured). Exterior with strong lamellae. Also with spiral cords, alone or forming a reticulate with the lamellae, or smooth. Brown to whitish, dull. Feeding Mytilidae on intertidal rocks.

Distribution

This species is found in the Atlantic Ocean off Argentina, the Falkland islands and Tierra del Fuego, Chile.

References

• Lamarck J.B. (1816). Liste des objets représentés dans les planches de cette livraison. In: Tableau encyclopédique et méthodique des trois règnes de la Nature. Mollusques et Polypes divers. Agasse, Paris. 16 pp.
• Engl, W. (2012). Shells of Antarctica. Hackenheim: Conchbooks. 402 pp

External links

• Küster, H. C.; Kobelt, W. (1839-1878). Die geschwänzten und bewehrten Purpurschnecken (Murex, Ranella, Tritonium, Trophon, Hindsia). In Abbildungen nach der Natur mit Beschreibungen. In: Systematisches Conchylien Cabinet von Martini und Chemnitz, ed. 2, Vol. 3(2): 1-336, pls 1-77. Nürnberg: Bauer & Raspe. Published in parts:
• Gmelin, J. F. (1791). Vermes. In: Gmelin J.F. (Ed.) Caroli a Linnaei Systema Naturae per Regna Tria Naturae, Ed. 13. Tome 1(6). G.E. Beer, Lipsiae
• Schumacher, C. F. (1817). Essai d'un nouveau système des habitations des vers testacés. Schultz, Copenghagen. iv + 288 pp., 22 pls.
• 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
• Hupé L.H. (1854). Fauna Chilena. Moluscos, pp. 1-407, In: Gay, C. (1854). Historia física y política de Chile según documentos adquiridos en esta Republica durante doce años de residencia en ella y publicada bajo los auspicios del Supremo Gobierno. Zoología, Tomo 8. Paris, published by the author, and Santiago de Chile, Museo de Historia Natural de Santiago
• Lightfoot, J. (1786). A Catalogue of the Portland Museum, lately the property of the Dutchess Dowager of Portland, deceased; which will be sold by auction by Mr. Skinner & Co. (book). London. viii + 194 pp
• Griffiths, H.J.; Linse, K.; Crame, J.A. (2003). SOMBASE - Southern Ocean mollusc database: a tool for biogeographic analysis in diversity and evolution. Organisms Diversity and Evolution. 3: 207-213
• Harasewych, M. G. (1984). Comparative anatomy of four primitive muricacean gastropods: implications for trophonine phylogeny. American Malacological Bulletin. 3(1): 11-26.
• "Trophon geversianus geversianus" (in en). Gastropods.com. http://www.gastropods.com/4/Shell_1634.shtml. 

Wikidata ☰ Q7845651 entry