noun. The typicalgenus of the family Appendiculariidæ.

noun. [lowercase; pl. appendiculariæ (-ē).] A member of the above genus.

noun. A genus of small free-swimming Tunicata, shaped somewhat like a tadpole, and remarkable for resemblances to the larvæ of other Tunicata. It is the type of the order Copelata or Larvalia. See Illustration in Appendix.

noun. free-swimming tadpole-shaped pelagic tunicate resembling larvae of other tunicates

"The ideal figure of the vertebrate as given in Figures 1.98 to 1.102 is a hypothetical scheme or diagram, that has been chiefly constructed on the lines of the amphioxus, but with a certain attention to the comparative anatomy and ontogeny of the ascidia and appendicularia on the one hand, and of the cyclostoma and selachii on the other."

tunicate  urochord  urochordate