markdadof2 Posted February 10, 2009 Share Posted February 10, 2009 This is strange! On page 374 of 'The Conscientious Marine Aquarist' by Robert Fenner it says that the Variable Thorny Oyster (Spndylus varians) has an orange mantle and blue EYES. Do they really have eyes? I just never thought of oysters having eyes.(scratch) Quote Link to comment Share on other sites More sharing options...
JManrow Posted February 10, 2009 Share Posted February 10, 2009 Scallops have complex eyes with a lens and retina, but most other bivalves have much simpler eyes, if any. There are also light-sensitive cells in all bivalves, that can detect shadows falling on the animal.[5] http://en.wikipedia.org/wiki/Bivalve I have noticed the eyes of flame scallops, and clams being very sensitive to movement, but never gave much thought to oysters! 1 Quote Link to comment Share on other sites More sharing options...
MadReefer Posted February 10, 2009 Share Posted February 10, 2009 My clams will move when I walk next to my tank. so I looked it up and found a study on clam eyes. I was surprised. Quote Link to comment Share on other sites More sharing options...
markdadof2 Posted February 10, 2009 Author Share Posted February 10, 2009 See, I didn't think Clams had eyes....so I just assumed oysters didn't either. This says the clams have no eyes but oysters are the exception: http://en.wikipedia.org/wiki/Clam Quote Link to comment Share on other sites More sharing options...
JManrow Posted February 10, 2009 Share Posted February 10, 2009 See, I didn't think Clams had eyes....so I just assumed oysters didn't either. This says the clams have no eyes but oysters are the exception: http://en.wikipedia.org/wiki/Clam hmmm... I see that it says: In most clams, two adductor muscles contract to close the shells. The clam has no head, and usually has no eyes, (scallops are a notable exception) (my underline) Quote Link to comment Share on other sites More sharing options...
markdadof2 Posted February 10, 2009 Author Share Posted February 10, 2009 I'm going to have to do some more reading to figure out if the scallop and oysters both have eyes. I don't know wny, but this intrigues me. Quote Link to comment Share on other sites More sharing options...
MadReefer Posted February 10, 2009 Share Posted February 10, 2009 The study I read was new and suggested that maxima clams (and maybe others) have eyes but that more studies need to be done to know for sure. I wish I knew where I read that. Quote Link to comment Share on other sites More sharing options...
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