Plate II. 



Fig. I. Echiiius aaitus^ var. Flemingu. 



— 2. — — var. norvegzcus, large specimen. 



— 3 — 5. Strongylocentrotus drøbachinisis. 



— 6. Echmtis acuius, var. norvegiciis^ small specimen. 



— 7. ParecMnus miliaris (on the plate wrongly called <! Psamniechinus>^\ 



— 8. Echinus acutus^ var. inediterranea. 



