acorn worm

(redirected from Enteropneusta)
Also found in: Dictionary, Encyclopedia, Wikipedia.

acorn worm

a hemichordate, one of the three groups of invertebrate chordates collectively referred to as PROTOCHORDATES.
Mentioned in ?
References in periodicals archive ?
A homologous amino acid sequence alignment of the various CacyBP proteins from Arthropoda, Enteropneusta, Mollusca, Cephalochordata, and Vertebrata was performed using ClustalX.
Interrelationships between Enteropneusta and Pterobranchia have been controversial.
5 Glandiceps hacksi JN886773 JN886755 Incertae sedis Gulf Stream Tornaria EU728437 EU728430 Enteropneusta incertae KF683573 KF683558 sedis H89.
Note on the later stages in the development of Balanoglossus kowalevakii [sic] (Agassiz), and on the affinities of the Enteropneusta.
1985; originally published in 1939) remains the most comprehensive review of the Enteropneusta from the Pacific Coast of North America.
See the appendix for a key to the families and genera of the Enteropneusta and the species of the genus Harrimania.
The Enteropneusta have long been considered classical mucociliary feeders, collecting their food particles on the proboscis with mucous secretions, and transporting them on the surface of multiciliated cells to the mouth (Barrington, 1940; Knight-Jones, 1953; Burdon-Jones, 1962; Thomas, 1972).
kowalevski with a suggestion as to the affinities of the Enteropneusta.