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English: Anatomical diagram of the hypothetical ancestral mollusc (“HAM”). Nervous system is hypoathroid. Unsegmented, bilaterally symmetrical body, organs occur either singly or in pairs (no metamerism), hemocoel circulatory system filled with hemocyanin, gametes ejected into pericardium and travel through nephridia to environment.
Deutsch: Darstellung der Anatomie des „hypothetischen Urmollusks“ (engl. hypothetical ancestral mollusc, HAM), des hypothetischen gemeinsamen Vorfahren der schalentragenden Weichtiere (Conchifera). Das Nervensystem ist hypoathroid (d.h. Pleuralganglien und Pedalganglien liegen relativ weit entfernt von den Cerebralganglien – der primitive Zustand bei Mollusken). Der Körper ist unsegmentiert und prinzipiell bilateralsymmetrisch, Organe treten entweder paarig oder einzeln auf (keine Metamerie), Sauerstofftransport in der Hämolymphe erfolgt über Hämocyanin, die Gameten werden ins Perikard injeziert und über die Nephridien an die Umwelt abgegeben.
Русский: Анатомическая схема гипотетического предка моллюсков
Date
Source Own work based on: a number of other images, including the following[1][2][3][4]
  1. ↑ Lindberg, David R. (2003-11-14). "Fact, Theory and Tradition in the Study of Molluscan Origins". PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES 54 (27): 663–686. San Francisco, CA: California Academy of Sciences.
  2. ↑ (1912) Chambers's Encyclopa︠e︡dia: A Dictionary of Universal Knowledge, Lippincott, p. 260
  3. ↑ Euan Clarkson (17 July 2009) Invertebrate Palaeontology and Evolution, John Wiley & Sons, p. 198 ISBN: 978-1-4443-1332-1.
  4. ↑ (January 2003) The Complete Idiot's Guide to the Oceans, Alpha Books, p. 142 ISBN: 978-0-02-864462-2.
Author KDS444
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current04:33, 31 December 2014Thumbnail for version as of 04:33, 31 December 20142,492 × 1,536 (2.42 MB)KDS4444nwewwe
04:27, 31 December 2014Thumbnail for version as of 04:27, 31 December 20142,492 × 1,536 (2.77 MB)KDS4444minor improvements
08:37, 24 September 2014Thumbnail for version as of 08:37, 24 September 20142,492 × 1,536 (2.64 MB)KDS4444Finishing touches
02:21, 23 September 2014Thumbnail for version as of 02:21, 23 September 20142,492 × 1,536 (2.62 MB)KDS4444Changed placement of right cerebral-pedal connective to behind esophagus rather than in front of it, and a few other minor alterations.
17:53, 21 September 2014Thumbnail for version as of 17:53, 21 September 20142,492 × 1,536 (2.6 MB)KDS4444A few more annotation line changes
12:19, 21 September 2014Thumbnail for version as of 12:19, 21 September 20142,492 × 1,536 (2.6 MB)KDS4444Re-ordered & restructured some annotation lines, placed "bumps" along back side of body
19:02, 15 September 2014Thumbnail for version as of 19:02, 15 September 20142,492 × 1,536 (2.6 MB)KDS4444cleaned up position of text and lines per request
07:56, 15 September 2014Thumbnail for version as of 07:56, 15 September 20142,596 × 1,594 (2.6 MB)KDS4444gametes changes
05:19, 14 September 2014Thumbnail for version as of 05:19, 14 September 20142,596 × 1,594 (2.58 MB)KDS4444more text changes per request
00:22, 14 September 2014Thumbnail for version as of 00:22, 14 September 20142,506 × 1,594 (2.57 MB)KDS4444fixed tentacle & some text
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