Source : Webster's Revised Unabridged Dictionary (1913)

Larvalia \Lar*va"li*a\, n. pl. [NL. See {Larval}.] (Zo["o]l.)
   An order of Tunicata, including Appendicularia, and allied
   genera; -- so called because certain larval features are
   retained by them through life. Called also {Copelata}. See
   {Appendicularia}.