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Science Forum Index » Bio Evolution Forum » jellyfish lens eye?
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| wugi |
 Posted: Sun Mar 11, 2007 12:24 pm |
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Back in 1998 or so I saw a couple of TV documentaries, where they were
showing jellyfish species featuring a lens-type eye on the top of the
jellyfish's bell.
Now, googling on the subject words, I only seem to find the case of the box
jellyfish or cubomedusa, featuring 4 small "corner" stalks near the bell's
border or rhopalium, each stalk having 6 eyes, two of which with lenses.
Eg: http://en.wikipedia.org/wiki/Box_jellyfish
But nothing about the occurrence of one lens eye on top of the bell, which I
remember clearly having seen in those documentaries, on rather big animals
at that.
Does anybody know more about this? Sources?
--
guido
http://home.scarlet.be/~pin12499/index.html |
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| dhoyt |
| Posted: Mon Mar 12, 2007 8:00 am |
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On Mar 11, 6:24 pm, "wugi" <b...@scarlet.be> wrote:
Quote: Back in 1998 or so I saw a couple of TV documentaries, where they were
showing jellyfish species featuring a lens-type eye on the top of the
jellyfish's bell.
Now, googling on the subject words, I only seem to find the case of the box
jellyfish or cubomedusa, featuring 4 small "corner" stalks near the bell's
border or rhopalium, each stalk having 6 eyes, two of which with lenses.
Eg:http://en.wikipedia.org/wiki/Box_jellyfish
But nothing about the occurrence of one lens eye on top of the bell, which I
remember clearly having seen in those documentaries, on rather big animals
at that.
Does anybody know more about this? Sources?
I don't know about the eye on the top of the bell, but here's the
reference for the Cubozoan eye:
Dan-E. Nilsson, Lars Gislén, Melissa M. Coates, Charlotta Skogh and
Anders Garm 2005 Advanced optics in a jellyfish eye Nature 435,
201-205 (12 May 2005) | doi: 10.1038/nature03484 |
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