thaliacea

WORDNET DICTIONARY

thaliacea(n = noun.animal) class thaliacea - small class of free-swimming tunicates; sometimes classified as an order;

is a member of subphylum tunicata, subphylum urochorda, subphylum urochordata, tunicata, urochorda, urochordata

is a kind of class

thaliacea, n. pl. [NL. See Thalia.].

A division of Tunicata comprising the free-swimming species, such as Salpa and Doliolum. [1913 Webster]