File:PSM V17 D495 The medicinal leech.jpg

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Fig. 1

1. The Medicinal Leech (Hirudo medicinalis) seen from above.
2. The same, under side; a b, sexual organs.
3. The nervous cord with its ramifications: a, forward upper part; b, forward lower part; c, posterior nervous node.
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Source Popular Science Monthly Volume 17
Author Unknown authorUnknown author
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current16:34, 11 February 2014Thumbnail for version as of 16:34, 11 February 20141,053 × 1,775 (367 KB)Ineuw (talk | contribs)Images cleaned & sharpened
15:03, 16 August 2010Thumbnail for version as of 15:03, 16 August 20101,033 × 1,784 (382 KB)Ineuw (talk | contribs){{Information |Description = The medicinal leech |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_17.djvu/495 |Date = 1880 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[Category:Popular Science Monthl

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