Assertion: crustacean's abdomen | /r/HasProperty | pleon
Facets:
Source sentences:
text: In most male crabs, the form of the abdomen (pleon) is narrow and triangular, while the females have a broader, rounder abdomen.
text: The body of Armadillidium vulgare is made up of a thorax (known as the pereon) with seven segments and an abdomen (the pleon) with uropods (appendages arising from the last segment of the abdomen).