Colus gracilis explained

Colus gracilis is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks and the like.

Description

A smooth form with flatter whorls, 40 to 100 mm in length, but a highly variable species that occurs in several morphologically different geographical and bathymetrical forms; these forms may look identical over large areas, then give an impression that several near species are involved.^[1]

References

• Thorson G. (1944). The Zoology of East Greenland. Marine Gastropoda Prosobranchiata. Meddelelser om Grønland 121 (13): 1-181
• Howson, C.M.; Picton, B.E. (1997). The species directory of the marine fauna and flora of the British Isles and surrounding seas. Ulster Museum Publication, 276. The Ulster Museum: Belfast, UK. . vi, 508 (+ cd-rom) pp.

External links

• Da Costa, Mendes E. (1778). Historia naturalis testaceorum Britanniæ, or, the British conchology; containing the descriptions and other particulars of natural history of the shells of Great Britain and Ireland: illustrated with figures. In English and French. - Historia naturalis testaceorum Britanniæ, ou, la conchologie Britannique; contenant les descriptions & autres particularités d'histoire naturelle des coquilles de la Grande Bretagne & de l'Irlande: avec figures en taille douce. En anglois & françois., i-xii, 1-254, i-vii, [1], Pl. I-XVII. London. (Millan, White, Emsley & Robson)]
• Kobelt, W. (1876). Beiträge zur arctischen Fauna. Jahrbücher der Deutschen Malakozoologischen Gesellschaft. 3: 61-76, 165-180.
• Jeffreys J.G. (1862-1869). British conchology. Vol. 1: pp. cxiv + 341 [1862]. Vol. 2: pp. 479 [1864]. Vol. 3: pp. 394 [1865]. Vol. 4: pp. 487 [1867]. Vol. 5: pp. 259 [1869]. London, van Voorst.]
• Harmer F.W. (1914-1918). The Pliocene Mollusca of Great Britain, being supplementary to S.V. Wood's monograph of the Crag Mollusca. Vol. 1. Monographs of the Palaeontographical Society. 67(330): 1-200, pl. 1-24 (part 1, February 1914); 68(333): 201-302, pl. 25-32 (part 2, July 1915); 70 (337): 303- 461, pl. 33-44 (part 3, February 1918); 71(341): i-xii, 463-483 (part 4, April 1919).
• Locard A. (1896) Mollusques testacés et brachiopodes, pp. 129-242, pl. 5-6, in: Koehler R. (1896) Résultats scientifiques de le campagne du "Caudan" dans le Golfe de Gascogne. Annales de l'Université de Lyon, 26
• Middendorff T. A. von. (1849). Beiträge zur einer Malacozoologica Rossica, II. Aufzählung und Beschreibung der zur Meeresfauna Russlands gehörigen Einschaler. Mémoires de l'Académie Impériale des Sciences de St-Petersbourg, sixième série, Sciences naturelles. 6: 329-516, pl. 1-11
• Bouchet, P.; Warén, A. (1985). Revision of the Northeast Atlantic bathyal and abyssal Neogastropoda excluding Turridae (Mollusca, Gastropoda). Bollettino Malacologico. supplement 1: 121-296
• Serge GOFAS, Ángel A. LUQUE, Joan Daniel OLIVER,José TEMPLADO & Alberto SERRA (2021) - The Mollusca of Galicia Bank (NE Atlantic Ocean); European Journal of Taxonomy 785: 1–114

Notes and References

1. Revision of the Northeast Atlantic bathyal and abyssal neogastropoda, by Ph.Bouchet