Archive 1268: Daily Pix FULL SIZE
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Freshwater Pic
of the Day Link
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Limulus polyphemus, a/the Horseshoe Crab.
This species is principally a sand-sifting filter feeder, though
there are other horseshoe crabs that are more predatory. Up to a
foot in diameter. Most die from a lack of nutrition in captivity,
due to insufficient size, depth, culture of live sand organisms.
Aquarium photo. |
.JPG)
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Out last March diving; well, snorkeling here; in Huahine. Wondered what
this is... Have dived (several times) the type locality... this could be
an example of the at-times high polymorphism of stony corals... vis a
vis local conditions of light, current, food availability.... on p. 136
of "guide: des recifs coralliens de Tahiti et ses iles" and
https://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:afd.taxon:a2481237-3b76-41f9-b802-15f489ff4484
appears to be Porites rus Forsskal 1775, Plate and Pillar Coral.
Variable in shape as its common name points to. Upright columns more
shallow to gorgeous plates deeper, more calm waters. Gray to brown in
color, often with yellow polyps that have wider spaced calyces, raised
areas between polyps. What say you? |
%20rus%20FP%20(1).JPG)
%20rus%20FP%20(1)%20MD.JPG)
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Out last March diving; well, snorkeling here; in Huahine. Wondered what
this is... Have dived (several times) the type locality... this could be
an example of the at-times high polymorphism of stony corals... vis a
vis local conditions of light, current, food availability.... on p. 136
of "guide: des recifs coralliens de Tahiti et ses iles" and
https://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:afd.taxon:a2481237-3b76-41f9-b802-15f489ff4484
appears to be Porites rus Forsskal 1775, Plate and Pillar Coral.
Variable in shape as its common name points to. Upright columns more
shallow to gorgeous plates deeper, more calm waters. Gray to brown in
color, often with yellow polyps that have wider spaced calyces, raised
areas between polyps. What say you? |
.JPG)
%20MD.JPG)
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Lysiosquillina maculata (Fabricius 1793), the Zebra Mantis
Shrimp. Indo-Pacific; East Africa to the Galapagos, Hawaii. One of the
biggest stomatopods at about 40
cm. |
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