File:EB1911 Peripatus - P. capensis - Series of Embryos.jpg
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DescriptionEB1911 Peripatus - P. capensis - Series of Embryos.jpg |
English: A series of embryos of P. capensis. The hind end of embryos B, C, D is uppermost in the figures, the primitive streak is the white patch behind the blastopore. |
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Date | published 1911 | ||||
Source | “Peripatus,” Encyclopædia Britannica (11th ed.), v. 21, 1911, p. 166, fig. 11. | ||||
Author | After Sedgwick. | ||||
Permission (Reusing this file) |
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English: Legend:
A, | Gastrula stage, ventral view, showing blastopore. |
B, | Older gastrula stage, ventral view, showing elongated blastopore and primitive streak. |
C, | Ventral view of embryo with three pairs of mesoblastic somites, dumb-bell shaped blastopore and primitive streak. |
D, | Ventral view of embryo, in which the blastopore has completely closed in its middle portion. The anterior pair of somites have moved to the front end of the body. |
E, | side view of later embryo. At, Antenna; d, dorsal projection; p.s., praeoral somite. |
F, | Ventral view of head of embryo, intermediate between E and G. At, Antennae; c.g, cerebral groove; j, jaws; j.s. swelling at base of jaws; L, lips; M, mouth; or.p, oral papillae; o.s, opening of salivary gland. |
G, | side view of older embryo. |
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current | 18:02, 14 May 2019 | 952 × 311 (78 KB) | Bob Burkhardt (talk | contribs) | {{Information |description ={{en|1=A series of embryos of ''P. capensis''. The hind end of embryos B, C, D is uppermost in the figures, the primitive streak is the white patch behind the blastopore.}} |date =published 1911 |source =“Peripatus,” ''Encyclopædia Britannica'' (11th ed.), v. 21, 1911, p. 166, fig. 11. |author =After Sedgwick. |permission ={{PD-Britannica}} }} {{en|Legend:}} {| |-valign="top" |A,||Gastrula stage, ventral view, showing blastopore. |-valig... |
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