File:EB1911 Platyelmia - Free-swimming Larva of a Polyclad Planarian.jpg
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[edit]DescriptionEB1911 Platyelmia - Free-swimming Larva of a Polyclad Planarian.jpg |
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.” | ||||
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English: Legend:
br, | Brain. | mg, | Stomach. | |
dr, | Glands. | n, | Nerves. | |
ep, | Epidermis. | ph, | Pharynx. | |
mo, | Mouth. | par, | Parenchyma. |
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current | 17:39, 17 December 2018 | 657 × 631 (134 KB) | Bob Burkhardt (talk | contribs) | {{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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