'Testaceous animals' definitions:

Definition of 'Testaceous animals'

From: GCIDE
  • Testaceous \Tes*ta"ceous\, a. [L. testaceus, fr. testa a shell. See Testa.]
  • 1. Of or pertaining to shells; consisted of a hard shell, or having a hard shell. [1913 Webster]
  • 2. (Bot. & Zool.) Having a dull red brick color or a brownish yellow color. [1913 Webster]
  • 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. [1913 Webster]