File:EB1911 Scyphomedusae - Later development of Chrysaora and Aurelia.jpg
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Summary
| Description |
English: Later development of Chrysaora and Aurelia (see legend below). |
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| Date | published 1911 | |||
| Source | “Scyphomedusae,” Encyclopædia Britannica (11th ed.), v. 24, 1911, p. 523, fig. 11. | |||
| Author | After Claus. | |||
| Permission (Reusing this file) |
|
English: Legend:
| A, | Scyphistoma of Chrysaora, with four perradial tentacles and horny basal perisarc. |
| B, | Oral surface of later stage of scyphistoma of Aurelia, with commencement of four interradial tentacles. The quadrangular mouth is seen in the centre; the outline of the stomach wall, seen by transparency around it, is nipped in four places interradially to form the four gastric ridges. |
| C, | Oral surface of a sixteen-tentacled scyphistoma of Aurelia. The four gastric interradial ridges are seen through the mouth. |
| D, | First constriction of the Aurelia scyphistoma to form the pile of ephyrae or young medusae. The single ephyra carries the sixteen scyphistoma tentacles, which will atrophy and disappear. The four longitudinal gastric ridges are seen by transparency. |
| E, | Young ephyra just liberated, showing the eight bifurcate arms of the disk and the interradial single gastral filaments. |
| F, | Ephyra developing into a medusa by the growth of the adradial regions. The gastral filaments have increased to three in each of the four sets. |
| A, | Margin of the mouth. |
| Ad, | Adradial radius. |
| F, | Gastral filament. |
| In, | Interradial radius. |
| JG, | Adradial gastral canal. |
| JR = R³, Adradial lobe of the disk. | |
| K, | Lappet of a per radial arm. |
| M, | Stomach wall. |
| Mst, | Muscle of the gastral ridge. |
| Mw, | Gastral ridge. |
| Ms, | Mesogloea. |
| O, | Tentaculocyst. |
| P, | Perradial radius. |
| R², | Interradial radius. |
| R³, | Adradial radius. |
| SG, | Commencement of lateral vessel. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:32, 13 December 2018 | | 743 × 714 (177 KB) | Bob Burkhardt | {{Information |description ={{en|1=Later development of ''Chrysaora'' and ''Aurelia'' (see legend below).}} |date =published 1911 |source =“Scyphomedusae,” ''Encyclopædia Britannica'' (11th ed.), v. 24, 1911, p. 523, fig. 11. |author =After Claus. |permission ={{PD-Britannica}} }} {{en|Legend:}} {| |-valign="top" |A,||Scyphistoma of ''Chrysaora'', with four perradial tentacles and horny basal perisarc. |--valign="top" |B,||Oral surface of later stage of scyphistoma... |
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