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Fig. 6 | Frontiers in Zoology

Fig. 6

From: Insights into the structure and morphogenesis of the giant basal spicule of the glass sponge Monorhaphis chuni

Fig. 6

Tuberculate layer surface. a General view of the transition from the annular layer surface (AL) to the tuberculate layer surface (TL). b Details of the transition between the AL and TL. c, d Details of tubercles in the transition zone between AL and TL surfaces; (note the irregular shape of tubercles that nearly fuse and that have different morphology from those occurring further along the spicule); e Typical, well-developed tubercles further from the annular surface (toward the apex of the spicule). f Typical tubercles in early stage of formation (young) on the same surface but located more apically

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Frontiers in Zoology

ISSN: 1742-9994