File:EB1911 Scyphomedusae - Development of Aurelia.jpg

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EB1911_Scyphomedusae_-_Development_of_Aurelia.jpg (342 × 492 pixels, file size: 43 KB, MIME type: image/jpeg)

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English: Development of Aurelia. Above to left, young scyphistoma with four perradial tentacles. Below to left, scyphistoma with sixteen tentacles and first constriction. To the right, strobila condition of the scyphistoma, consisting of thirteen metameric segments; the uppermost still possesses the sixteen tentacles of the scyphistoma; the remainder have no tentacles, but are ephyrae, each with eight bifid arms (processes of the disc). Each segment when detached becomes an ephyra, such as that drawn in File:EB1911 Scyphomedusae - Later development of Chrysaora and Aurelia.jpg, E, F.
Date published 1911
Source “Scyphomedusae,” Encyclopædia Britannica (11th ed.), v. 24, 1911, p. 524, fig. 12.
Author From Gegenbaur.
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Public domain This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.

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current20:34, 15 December 2018Thumbnail for version as of 20:34, 15 December 2018342 × 492 (43 KB)Library Guy (talk | contribs){{Information |description ={{en|1=Development of ''Aurelia''. Above to left, young scyphistoma with four perradial tentacles. Below to left, scyphistoma with sixteen tentacles and first constriction. To the right, strobila condition of the scyphistoma, consisting of thirteen metameric segments; the uppermost still possesses the sixteen tentacles of the scyphistoma; the remainder have no tentacles, but are ephyrae, each with eight bifid arms (processes of the disc). Each segment when detach...

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