Amphioxus

Amphioxus and the ancestry of the vertebrates.

With a preface by Henry Fairfield Osborn.

Contributions to the knowledge of Rhabdopleura and Amphioxus.

Lankester, E. Ray

The biology of Hemichordata and Protochordata

by E. J. W. Barrington.

Protochordates: the proceedings of a symposium held at the Zoological Society of London on 17 and 18 January 1974

edited by E.J.W. Barrington and R.P.S. Jefferies.

The sensory reactions of Amphioxus

by G.H. Parker.

Amphioxus and the ancestry of the vertebrates

With a preface by Henry Fairfield Osborn

The biology of Hemichordata and Protochordata

[by] E. J. W. Barrington.

Ueber das Urogenitalsystem des Amphioxus und der Cyclostomen

von Wilhelm Müller

Microscopic anatomy of developmental stages of Branchiostoma lanceolatum (Cephalochordata, Chordata)

by Thomas Stach.

Cephalochordata

by J.E. Webb.