Author: Barrington, E. J. W.:
Title: The Biology of Hemichordata and Protochordata.
Description: Edinburgh, Oliver & Boyd, 1965 Proof Copy, pbk, Good, date stamped and priced by hand to top of upper wrap, contents clean and tight, pp174. A sound ref. copy.

Keywords: hemichordata protochordata biology science enteropneusta musculature epiderms locomotion burrowing Vascular system urochordata cephalochordata larvae filtration feeding embryology evolution tunic


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