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Aristotle's lantern

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Aristotle's lantern

Jaw apparatus of the sea urchins, consisting of five hard, pointed teeth in sockets formed by five ossicles. They are used to scrape algae and seaweeds from the rocks for food.



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A frequently reported effect of food availability is its inverse relation to the relative size of Aristotle's lantern (e.
The Aristotle's lantern index did not differ with temperature treatment except on June 27, but the differences are slight (Table 6).
The RSU is usually tagged by injection of tetracycline or soaking in a calcein solution, which leaves a fluorescent mark at the time of tagging in the skeleton, such as demi-pyramids of the Aristotle's Lantern (jaw) of the RSU (Ebert & Russell 1992).
 
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