File:Fiona pinnata circulatory system.png

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Description
English: Drawing of heart and open pericardium of Fiona pinnata. There is a ventricle (oval structure on the top) and a part aorta leading from vetricle, auricle (in the centre of the image), "portal heart" (a small tube like structure on the right). The vessels are leading to great median trunk.
Date
Source Alder J. & Hancock A. (October 1851). "Descriptions of two new species of nudibranchiate Mollusca, one of them forming the type of a new genus". Annals and Magazine of Natural History (series 2)8(46): 290-302, pls. 9-10. Cropped from Plate 10 figure 3 and retouched by User:Snek01.
Author Joshua Alder (1792-1867) & Albany Hancock (1806-1873)
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October 1851Gregorian

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current22:46, 20 December 2009Thumbnail for version as of 22:46, 20 December 2009860 × 1,827 (579 KB)Snek01{{Information |Description={{en|Drawing of heart and open pericardium of ''Fiona pinnata''. There is a ventricle (oval structure on the top) and a part aorta leading from vetricle, auricle (in the centre of the image), "portal heart" (a small tube like st
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