Webster’s Revised Unabridged Dictionary · 1913
Testacea
Tes·ta′ce·a (tĕs·tā′shē·ȧ), n. pl. [NL., fr. L. testaceum a shelled anumal. See Testaceous.] (Zoöl.) Invertebrate animals covered with shells, especially mollusks; shellfish.
Webster’s Revised Unabridged Dictionary · 1913
Tes·ta′ce·a (tĕs·tā′shē·ȧ), n. pl. [NL., fr. L. testaceum a shelled anumal. See Testaceous.] (Zoöl.) Invertebrate animals covered with shells, especially mollusks; shellfish.