File:EB1911 Hydromedusae - formation of an Acrocyst and a Marsupium.jpg
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English: Diagrams to show the mode of formation of an Acrocyst and a Marsupium. In A two medusa-buds are seen within the gonotheca (gth), the upper more advanced than the lower one. In B the spadix of the upper bud has protruded itself through the top of the gonotheca and the acrocyst (ac) is secreted round it. In C the marsupium (m) is formed as finger-like process from the summit of the blastostyle, enclosing the acrocyst; b, medusa-buds on the blastostyle. |
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| Date | published 1911 | |||
| Source | “Hydromedusae,” Encyclopædia Britannica (11th ed.), v. 14, 1911, p. 153, fig. 57. | |||
| Author | After Allman, Gymnoblastic Hydroids. | |||
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:10, 29 November 2018 | | 606 × 612 (114 KB) | Bob Burkhardt (talk | contribs) | {{Information |description ={{en|1=Diagrams to show the mode of formation of an Acrocyst and a Marsupium. In A two medusa-buds are seen within the gonotheca (''gth''), the upper more advanced than the lower one. In B the spadix of the upper bud has protruded itself through the top of the gonotheca and the acrocyst (''ac'') is secreted round it. In C the marsupium (''m'') is formed as finger-like process from the summit of the blastostyle, enclosing the acrocyst; ''b'', medusa-buds on the bl... |
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