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Is this Bimaculoides or Bimaculatus?

Joe-Ceph

Haliphron Atlanticus
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Sep 25, 2006
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#1
I’m reading contradictory information about how to use the eyespots to distinguish between O. Bimaculoides and O. Bimaculatus. Which one has a a solid ("sunburst-like”) blue ring, and which has a broken (“chain link”) eye spot?

Here’s a picture of the ring on a little Bimac I caught in a tidepool recently. I would call this ring solid, unbroken, and “sunburst-like”, as opposed to “chain link”. So is it a Bimaculatus or a Bimaculoides (or is the blue ring on the eyespot inconclusive)?
 

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Nancy

Titanites
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#2
This photo is not too clear. Look at the photo in the bimac care sheet - you can see the unbroken "chain links". That's what an O. bimaculoides's ocellus looks like. Most likely the eye spot you photographed looks like this.

Nancy
 

Joe-Ceph

Haliphron Atlanticus
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#3
Ok, so Bimaculoides will have an unbroken chain link.
What will Bimaculatus have? A broken circle? A smooth unbroken circle (no chain links)? How are the rings on the two different?
 

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