File:EB1911 Platyelmia - Free-swimming Larva of a Polyclad Planarian.jpg
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Summary
| Description |
English: Free-swimming Larva (Müller's Larva) of a Polyclad Planarian to illustrate the trochosphere-hypothesis of the origin of Platyelmia. The larva is seen in optical section, and its distinguishing feature is the ciliated lobed band (vl, sl, dl), which corresponds to the pre-oral ciliated band of a trochosphere-larva. It is here drawn out into eight processes, of which six are shown, their continuity being expressed by the dotted line. See legend below. |
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| Date | published 1911 | |||
| Source | “Platyelmia,” Encyclopædia Britannica (11th ed.), v. 21, 1911, p. 826, fig. 1. | |||
| Author | From Cambridge Natural History, vol. ii., “Worms, &c.” | |||
| Permission (Reusing this file) |
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English: Legend:
| br, | Brain. | mg, | Stomach. | |
| dr, | Glands. | n, | Nerves. | |
| ep, | Epidermis. | ph, | Pharynx. | |
| mo, | Mouth. | par, | Parenchyma. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:39, 17 December 2018 | | 657 × 631 (134 KB) | Bob Burkhardt | {{Information |description ={{en|1=Free-swimming Larva (Müller's Larva) of a Polyclad Planarian to illustrate the trochosphere-hypothesis of the origin of Platyelmia. The larva is seen in optical section, and its distinguishing feature is the ciliated lobed band (''vl'', ''sl'', ''dl''), which corresponds to the pre-oral ciliated band of a trochosphere-larva. It is here drawn out into eight processes, of which six are shown, their continuity being expressed by the dotted line. See legend be... |
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