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Harpago chiragra : ウィキペディア英語版 | Harpago chiragra
''Harpago chiragra'', common name the Chiragra spider conch, is a species of very large sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs. 〔 Bouchet, P. (2011). Harpago chiragra (Linnaeus, 1758). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=564725 on 2011-04-23 〕 == Shell description == The shell length for this species varies between 85 mm and 320 mm, usually to 170 mm.〔Poutiers, J. M. (1998). (Gastropods in: ''FAO Species Identification Guide for Fishery Purposes: The living marine resources of the Western Central Pacific Volume 1.'' Seaweeds, corals, bivalves and gastropods ). Rome, FAO, 1998. page 477.〕 ''Harpago chiragra'' has a very thick, robust and heavy shell, with a distinct anterior notch. Its most prominent characteristic are the six long and curved marginal digitations, expanded from the flaring, thick outer lip and canals. The columella and aperture are lirate.
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