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With the sagacity upon which Miss Cora Dobbs prided herself—if she happened to be perfectly sober—she decided to postpone any oscular demonstration of regard for Harry until the next day.

The external membrane in many Spongillid� is prolonged round and above the oscula so as to form an oscular collar.

Oscular collar A ring-shaped membrane formed by an extension of the derma round an osculum.

Oscula star-shaped, of moderate size, as a rule rendered conspicuous by the furrows that radiate from them over the outer surface of the parenchyma below the external membrane; oscular collars well developed.

The oscular collars are fairly well developed, but the subepidermal space is not extensive.