Aclyvolva lanceolata (Sowerby, 1848)
Lance ovulid, 17mm
This
species is found on the steep seaward reef slopes, always on these red whip-like
gorgonians, which could be a species of Ellisella or Ctenocella.
They are hard to spot on the gorgonian, but if you spot one, there will usually
be others on surrounding gorgonain colonies; we typically see only one per colony.
Some ovulid experts think this may be a different, as yet undescribed species,
but more work is needed on it and its close relatives to be certain.
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The next few shots show a bare patch
of gorgonian skeleton where the ovulid has been grazing.
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The specimen in the two photos
below was one of two found on 12 April 2010 on Ellisella gorgonians
on the Kwajalein Atoll seaward reef at a depth of about 40m. The papillae, especially
those around the anterior end, look a bit different from the earlier specimens,
but it is probably just a variation.
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Created
22 September 2008
Updated 23 March 2020
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