Echinidea


(pasar puntero sobre imagen | mouse over image)

1 Cidaris tribuloides | from below
2 Cidaris baculosa | Prionocidaris baculosa | mouth region of shell from below (spines removed)
3 Cidaris baculosa | periproct region of shell from above (spines removed)
4 Dorocidaris papillata | Cidaris cidaris | pedicellaria
5 Strongylocentrus nudus | pedicellaria in lengthwise section
6 Phyllacanthus annulifera | Prionocidaris baculosa | spine
7 Phyllacanthus baculosa | Prionocidaris baculosa | spine
8 Psammechinus miliaris | endplate of tube-foot
9 Centrostephanus longispinus | spine in cross-section
10 Sphaerechinus esculentus | Sphaerechinus granularis | pedicellaria in lengthwise section
11 Sphaerechinus esculentus | mouthparts | Aristotle's Lantern
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