n.

primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva

同義詞：tunicateurochordate

a notochord of a larval tunicate typically confined to the caudal region

Gene expression profile during the life cycle of the urochordate Ciona intestinalis.
Migratory neural crest-like cells form body pigmentation in a urochordate embryo
A cyclical, developmentally-regulated death phenomenon in a colonial urochordate.
Developmental expression of Pax1/9 genes in urochordate and hemichordate gills: insight into function and evolution of the pharyngea...
Conservation of the developmental role of Brachyury in notochord formation in a urochordate, the ascidian Balocynthia roretzi
The evolutionary history of placodes: a molecular genetic investigation of the larvacean urochordate Oikopleura dioica.
Systemic Bud Induction and Retinoic Acid Signaling Underlie Whole Body Regeneration in the Urochordate Botrylloides leachi
Cyclical Generation and Degeneration of Organs in a Colonial Urochordate Involves Crosstalk between Old and New: A Model for Develop...
Coexistence and Possible Parasitism of Somatic and Germ Cell Lines in Chimeras of the Colonial Urochordate Botryllus schlosseri
The invertebrate ancestry of endocannabinoid signalling: an orthologue of vertebrate cannabinoid receptors in the urochordate Ciona ...