Abstract
A protein extract was isolated from the salivary gland of Dolabella scopola, a marine opisthobranch mollusc. The extract was a kind of glycoprotein or glycoprotein-like substance, which was consisted from fourteen kinds of amino acid and one sugar. It caused a increase of calcium level in rat serum on the intraveneous administration and a transitory decrease of the number of leucocytes in rabbit followed by its successive increase.
