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C. L.  Arnback, ?A new Styelid tunicate from the Boshuslan coast?, Arkiv foer Zoologi, vol. 22A, pp. 1-6, 1931.

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C. L.  Arnback, ?Ascidiacea?, In Further zoological results of the Swedish Antarctic expedition 1901-1903 under the direction of Dr. Otto Nordenskjold, vol. 3, pp. 1-54, 1938.