Placoid scales definitions

placoid scales

(Gk: plax/placos=flat plate) small scales consisting of a hard base and a tooth-like backward projection, embedded in the skin of sharks.
Found on http://www.seafriends.org.nz/books/glossary.htm

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Placoid scales

Teeth-like scales found in sharks and rays.
Found on http://www.translationdirectory.com/glossaries/glossary302.php

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Placoid Scales

Also called dermal denticles. Small tooth-like scales on the skin of a shark
Found on http://www.world-of-sharks.com/shark-glossary.html

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