XVI.—On the Representative Relationships of the Fixed and Free Tunicata, regarded as two Subclasses of equivalent value; with some General Remarks on their MorphologyAuthors: J D MacdonaldPublished in Transactions of The Royal Society of Edinburgh, in 1863, in volume 23, issue 2, pages 171-183Created: 2017-10-12, modified: 2026-07-29doi:10.1017/S0080456800019347