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Figure 6 | Frontiers in Zoology

Figure 6

From: Comparative morphology of the axial complex and interdependence of internal organ systems in sea urchins (Echinodermata: Echinoidea)

Figure 6

Horizontal magnetic resonance imaging (MRI) sections of various sea urchin specimens. The virtual sections were made at the level of gonads, upper digestive tract, and axial complex (arrow). Note the differing mesenterial suspensions of the axial complex. A Cidaris cidaris (Cidaroida). B Eucidaris metularia (Cidaroida). C Caenopedina mirabilis (Pedinoida). D Aspidodiadema hawaiiense (Aspidodiadematidae). E Strongylocentrotus purpuratus (Echinoida). F Lytechinus variegatus (Echinoida). G Mespilia globulus (Temnopleuroida). H Echinoneus cyclostomus (Holectypoida). Tables 1 & 2 list resolutions for each MRI dataset.

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Frontiers in Zoology

ISSN: 1742-9994