Archive image from page 37 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex5dpt12daniuoft Year: 1899-1953 Fig. 31. Saijnrtiogeton tubicolus. Section of sphincter in its aboral pait. the endoderm, sometimes also the ectoderm took part a little in the formation of the cinclides. Also in the lowest part of the .scapus where tenaculi seem to be absent—this part was not in- —there were cinclides, principally invaginations of the ectoderm. The mesogloea of the column was fairlv thick, in the uppermost part of the body, however, attenuated. The sphinc

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Archive image from page 37 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex5dpt12daniuoft Year: 1899-1953 Fig. 31. Saijnrtiogeton tubicolus. Section of sphincter in its aboral pait. the endoderm, sometimes also the ectoderm took part a little in the formation of the cinclides. Also in the lowest part of the .scapus where tenaculi seem to be absent—this part was not in- —there were cinclides, principally invaginations of the ectoderm. The mesogloea of the column was fairlv thick, in the uppermost part of the body, however, attenuated. The sphincter

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