Testaceous

a.	1.	Of or pertaining to shells; consisted of a hard shell, or having a hard shell.
	2.	(Bot. & Zool.) Having a dull red brick color or a brownish yellow color. Testaceous animals (Zool.) animals having a firm, calcareous shell, as oysters and clams, thus distinguished from crustaceous animals, whose shells are more thin and soft, and consist of several joints, or articulations, as lobsters and crabs.

Adj.	1.	testaceous - relating to or possessing a test
	2.	testaceous - relating to or possessing a testa; "testaceous echinoderms"

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