Tritia grana

{{Short description|Species of mollusc}} {{Use dmy dates|date=July 2020}} {{Speciesbox | image = Tritia grana 01.jpg | image_caption = | taxon = Tritia grana | authority = (Lamarck, 1822) <ref>Lamarck ([J.-B. M.] de), 1815–1822: ''Histoire naturelle des animaux sans vertèbres'' Paris [vol. 5: Paris, Deterville/Verdière] [vol. 6 published by the Author]</ref> | synonyms_ref = <ref name="WoRMS" /> | synonyms = * ''Buccinum grana'' Lamarck, 1822 * ''Buccinum granum'' Lamarck, 1822 (basionym) * ''Nassa graniformis'' Locard, 1886 * ''Nassa granum'' (Lamarck, 1822) * ''Nassa granum'' var. ''elongata'' Pallary, 1900 * ''Nassa granum'' var. ''lutea'' Pallary, 1920 * ''Nassa granum'' var. ''varicosa'' Pallary, 1900 * ''Nassarius (Naytiopsis) granum'' (Lamarck, 1822) * ''Nassarius granum'' (Lamarck, 1822) * ''Naytiopsis granum'' (Lamarck, 1822) * ''Planaxis laevigata'' Risso, 1826 }}

'''''Tritia grana''''' is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.<ref name="WoRMS">Marshall, B. (2016). Tritia grana (Lamarck, 1822). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=876837 on 2016-05-18</ref>

==Spelling== The specific name was originally introduced in the binomen ''Buccinum grana'', translated in French as "buccin graine". This has been emended to ''granum'' by Kiener (1834: 22) and most subsequent authors, presumably considering that the correct Latin word for "graine" ("seed") is granum. Therefore, the spelling ''granum'' must be conserved in application of ICZN art. 33.2.3.1. "when an unjustified emendation is in prevailing usage and is attributed to the original author and date it is deemed to be a justified emendation".<ref name="WoRMS" />

==Description== The shell size varies between 10 mm and 14 mm

The small shell is ovate, pretty thick, reddish, smooth and shining. It is surrounded with interrupted, small, brown lines, more approximate towards the middle of the lowest whorl, and of a deeper color at the base. The spire is elongated, pointed. It is composed of seven slightly convex whorls, surrounded at their upper part by a white band, sprinkled with distant, brown points or spots. The aperture is white. The internal edge of the outer lip is crenulated, the external part forming a smooth, thick callus, of a dull white, which is continued upon the base of the shell even to the columella, which is arcuated and folded at its base.<ref name="Kiener">[https://archive.org/details/generalspeciesic00kien Kiener (1840). General species and iconography of recent shells : comprising the Massena Museum, the collection of Lamarck, the collection of the Museum of Natural History, and the recent discoveries of travellers; Boston :W.D. Ticknor,1837]</ref>

==Distribution== This species occurs in the Mediterranean Sea and in the Atlantic Ocean off Senegal.

==References== {{Reflist}} * Cernohorsky W. O. (1984).'' Systematics of the family Nassariidae (Mollusca: Gastropoda)''. Bulletin of the Auckland Institute and Museum 14: 1–356 * 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

==External links== {{Commons category|Tritia grana}} * {{Gastropods.com|key=6|id=6066|title=''Nassarius (Naytiopsis) granum''|access-date=20 February 2011}} * [https://www.biodiversitylibrary.org/item/47433 Lamarck, (J.-B. M.) de. (1822). Histoire naturelle des animaux sans vertèbres. Tome septième. Paris: published by the Author, 711 pp] * [https://www.biodiversitylibrary.org/bibliography/58984 Risso, A. (1826-1827). Histoire naturelle des principales productions de l'Europe Méridionale et particulièrement de celles des environs de Nice et des Alpes Maritimes. Paris, F.G. Levrault. 3(XVI): 1-480, 14 pls.] * [https://biodiversitylibrary.org/page/25146965 Pallary, P. (1900). Coquilles marines du littoral du département d'Oran. Journal de Conchyliologie. 48(3): 211-422.] * [https://www.biodiversitylibrary.org/page/10831012 Locard, A. (1886). Prodrome de malacologie française. Catalogue général des mollusques vivants de France. Mollusques marins. Lyon: H. Georg & Paris: Baillière. x + 778 pp] * [https://www.biodiversitylibrary.org/item/100432 Pallary, P. (1920). Exploration scientifique du Maroc organisée par la Société de Géographie de Paris et continuée par la Société des Sciences Naturelles du Maroc. Deuxième fascicule. Malacologie. i>Larose, Rabat et Paris pp. 108. 1(1)] * [https://doi.org/10.1016/j.ympev.2016.03.019 Galindo, L. A.; Puillandre, N.; Utge, J.; Lozouet, P.; Bouchet, P. (2016). The phylogeny and systematics of the Nassariidae revisited (Gastropoda, Buccinoidea). Molecular Phylogenetics and Evolution. 99: 337-353.]

{{DEFAULTSORT:Tritia Grana}} grana Category:Gastropods described in 1822 Category:Taxa named by Jean-Baptiste Lamarck