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Figure 5 | BMC Evolutionary Biology

Figure 5

From: Origin and evolutionary plasticity of the gastric caecum in sea urchins (Echinodermata: Echinoidea)

Figure 5

Digestive tract anatomy of selected "regular" sea urchin taxa (Parechinidae - Toxopneustidae). Parechinidae (A-D), Echinidae (E, F), Echinometridae (G, H), Strongylocentrotidae (I, J), and Toxopneustidae (K, L). (A) from [27, Fig. 9] - reproduced in modified form with kind permission from Mr. Thierry Powis de Tenbossche. (C, F, K) from [22, Figs. 1, 4, 7, Pl. II] - reproduced in modified form with kind permission from L'Institut Océanographique, Fondation Albert Ier, Prince de Monaco. (H) from [23, Fig. 9] - reproduced in modified form with kind permission from The Royal Society of New Zealand. AB = aboral view, OR = oral view. d = dilation, e = esophagus, f = festoon. Not to scale.

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