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Of a red color; reddish; as, the erythroid tunic (the cremaster muscle).

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.

A broad stripe of purple on the fore part of the tunic, worn by senators in ancient Rome as an emblem of office.

A visceral mass, containing the stomach and other organs, in Tunicata and some mollusks.

A chiton, or loose, ungirded tunic, falling in straight folds.

The pouch in which incubation takes place in some Tunicata.

A group of invertebrates including the Tunicata and Enteropneusta. -- Pha*ryn`gop*neus"tal, a.

A genus of transparent, tubular, free-swimming oceanic tunicates found abundantly in all the warmer latitudes. See Illustration in Appendix.

An ascidian. See Illust. under Tunicata.

ary divisions of either the animal, or vegetable kingdom, as, in zoölogy, the Vertebrata, Tunicata, Mollusca, Articulata, Molluscoidea, Echinodermata, Coelentera, and the Protozoa; in botany, the Phanerogamia, and the Cryptogamia.

A sort of tunic or mantle formerly worn for protection from the weather. When worn over the armor it was commonly emblazoned with the arms of the wearer, and from this the name was given to the garment adopted for heralds. [Spelt also taberd.]

A tunicate.

A division of Tunicata including the common attached ascidians, both simple and compound. Called also Tethioidea.

A division of Tunicata comprising the free-swimming species, such as Salpa and Doliolum.

The central axis or cord in the tail of larval ascidians and of certain adult tunicates. [Written also urocord.]

Same as Tunicata.

ans, annelids, and allied groups. By some writers the branchiopods, the bryzoans, and the tunicates are also included. The name was used in a still wider sense by Linnæus and his followers.