File:A naturalist's rambles on the Devonshire coast (Page 353) (5980718857).jpg

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ASSUMPTION OF THE POLYPE-FORM. 358
gemmules (fig. 9) seem to escape from the walls of the
ovaries, working their way out at the sides. They
drop down on the bottom of the vessel, where they
move about slowly for a while, to no great ex-tent, by
means of their vibratile cilia.
All through September, as this species was very
numerous in the harbour and in the neighbouring
coves, I procured great numbers of them, most of
which I placed in a deep cylindrical glass vessel, —
the chimney of a lamp, in fact, with a plate of glass
cemented across one end for a bottom. By examining
this bottom-plate from beneath with a lens, I found
early in September that a good many of the gemmules
had affixed themselves to it, and were changing their
form. By watching them, I ascertained the following
facts. The gemmule, having adhered to the glass,
grows out into a lengthened form, variously knobbed
and swollen, and frequently dividing into two branches,
the whole adhering closely to the glass. After a day
or two's growth in this manner, a perpendicular stem
begins to shoot from some point of this creeping root,
and soon separates into four straight, slender, slightly
divergent tentacles, which shoot to a considerable
length. The whole is of a crimson hue, with the
exception of the growing extremities of the creeping
root, which are pellucid white. The little creature is
now a Polype of four tentacles. (See fig. 10).
I could not follow the development farther, for
though I had perhaps, a dozen in this stage, on the
bottom of the glass, they all died without farther
growth. And though, for weeks after, many gemmules

were deposited, and I could see plenty every day
Date
Source https://www.flickr.com/photos/biodivlibrary/5980718857
Author Gosse, Philip Henry; Hullmandel & Walton
Full title
InfoField
A naturalist's rambles on the Devonshire coast / by Philip Henry Gosse.
Page ID
InfoField
29378927
Item ID
InfoField
93094 (Find related Wikimedia Commons images)
Title ID
InfoField
42528 (Find related Wikimedia Commons images)
Page numbers
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Page 353
BHL Page URL
InfoField
https://www.biodiversitylibrary.org/page/29378927
DOI
InfoField
10.5962/bhl.title.42528
Page type
InfoField
Text
Flickr sets
InfoField
  • A naturalist's rambles on the Devonshire coast
Flickr tags
InfoField
  • Cnidaria
  • Ctenophora
  • Description and travel
  • Devon (England)
  • Great Britain
  • Marine animals
  • Smithsonian
  • Institution
  • Libraries
  • SIL
  • bhl:page 29378927
  • dc:identifier https://www.biodiversitylibrary.org/page/29378927
  • taxonomy:binomial Aequorea vitrina
  • artist:name Philip Henry Gosse
  • devon (england)
  • great britain
  • sil
  • taxonomy:binomial aequorea vitrina
  • artist:name philip henry gosse
Flickr posted date
InfoField
27 July 2011
Credit
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This file comes from the Biodiversity Heritage Library.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.


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This image was originally posted to Flickr by BioDivLibrary at https://flickr.com/photos/61021753@N02/5980718857. It was reviewed on 11 September 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

11 September 2015

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current04:51, 11 September 2015Thumbnail for version as of 04:51, 11 September 20153,436 × 2,051 (878 KB)== {{int:filedesc}} == {{BHL | title = A naturalist's rambles on the Devonshire coast / by Philip Henry Gosse. | source = http://www.flickr.com/photos/biodivlibrary/5980718857 | description = ASSUMPTION OF THE POLYPE-FORM. 358 <br> gemmules (fig. 9) s...
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