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Cardium substriatum.
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Cardium bians (Brocchi).
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Great Oyster from Singapore; (Tridacna gigas.);. This is the finest known specimen, and to it the Jury awarded a diploma at the Fisheries Exhibition. Its weight is 3 cwt. 3 qrs. 14 lbs.; its length 3 ft. 4 in.; and its breadth 2 ft.; 2 in.
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Cardium (Hemicardium) cardissa L., East Indies.
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Cardium magnum.
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Valves of Cardium edule from the four upper terraces of Shumish Kul, a dry salt lake adjacent to the Aral Sea.
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Cardium edulus (Linnaeus).
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Tridacne faitiere. Tridacna aquammosa
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Cardium shells covered with young oysters of life size.
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Cardium mortoni, showing extended animal.
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Cardium edule L..
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Cardium Greenlandicum (Chemnitz).
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Tridacna gigantea--Holy Water Basin in the Church of Saint Sulpice at Paris.
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Shell of Cardium Covered with Young Oysters.
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Nervous system of Cardium edule L..
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Cardium islandicum.
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Shell of Cardium corbis, the 'Cockle'.
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Cardium edule, showing partly united siphons with papillaceous orifices.
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Cardium corbis (young specimen).
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A.Common cockle (cardium edule L.). B. Adaena plicata Eichw., Caspian Sea; Didacna trigonoides Pall., Caspian Sea
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Basket Cockle, Cardium corpis.
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Cardium costatum (Linnaeus).
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Cardium isocardia.
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Tridacna squamosa (Lamarck).
