The pelagic tunicata . Scaphopoda
by R.B. Seymour Sewell . by N.H. Ludbrook
(The John Murray expedition,1933-34 : scientific reports, v. 10,
Printed by order of the trustees of the British Museum, 1953-1954
At head of title: British Museum (Natural History)
Includes bibliographical references
Printed by order the trustees of the British Museum
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