Pierre Denys de Montfort, also spelt Pierre Dénys de Montfort, (1766–1820) was a French naturalist, in particular a malacologist, remembered today for his pioneering inquiries into the existence of the gigantic octopuses. He was inspired by a description from 1783 of an eight-metre long tentacle found in the mouth of a sperm whale.
Montfort was author of Conchyliologie systématique, et classification méthodique de coquilles (2 vols., Paris 1808–1810) and of Histoire Naturelle Générale et Particulière des Mollusques (2 vols., Paris 1801–1802) published as an addendum to the comte de Buffon's Histoire Naturelle, générale et particulière.
He appears also to have been the author of Petit vocabulaire à l'usage des Français et des Alliés, renfermant les noms d'une partie des choses les plus essentielles à la vie en plusieurs langues: français, Latin, hébreu, hollandais, allemand, anglais, espagnol, italien, etc par M. Denys de Montfort, which appeared in 1815, as Paris filled with the polyglot armies of the Allies, after the fall of Napoleon in 1814.
Montfort later advanced more sensational claims. He proposed that ten British warships that had mysteriously disappeared one night in 1782 must have been attacked and sunk by giant octopuses. The British knew what had happened to the ships, resulting in a disgraceful revelation for Montfort. His career never recovered and he died starving and poor in Paris around 1820. Many of his sources for the "kraken octopus" probably described the very real giant squid, Architeuthis, proven to exist in 1857.
Taxa
Montfort named some taxa of gastropods including:
- Lanistes Montfort, 1810 - a genus of freshwater apple snails
- Scutus antipodes Montfort, 1810
References
 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (April 2011) (Learn how and when to remove this message) |
- Conchyliologie systâematique, et classification mâethodique des coquilles : Offrant leurs figures, leur arrangement gâenâerique, leurs descriptions caractâeristiques, leurs noms, ainsi que leur synonymie en plusieurs langues : Ouvrage destinâe áa faciliter l'âetude des coquilles, ainsi que leur disposition dans les cabinets d'histoire naturelle. 1808.
- "Repères pour une Histoire de la langue française au XIXe siècle" (in French).
- (in Swedish) Sjögren, Bengt (1980). Berömda vidunder. Settern. ISBN 91-7586-023-6
- Ellis, R. (1999). The Search for the Giant Squid. Penguin Books. ISBN 978-0-14-028676-2.
- Michael Hann (2 March 2006). "A monster from the depths of our imagination". The Guardian. Retrieved 2009-05-11.
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