• Webster's Revised Unabridged Dictionary
    • prop. n. pl Larvalia (Zoöl) 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.
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Century Dictionary and Cyclopedia
    • larvalia One of two classes of tunicates or ascidians (the other being Saccata), considered as a branch of vertebrates under the name Urochorda (which see). The Larvalia consist of the Appendiculariæ, or those ascidians which retain the urochord throughout life. E. R. Lankester.
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Webster's Revised Unabridged Dictionary
NL. See Larval