10 slides
1 - Asterias, starfish, t.s. of ray showing general structure
2 - Young starfish, horizontal sec.
3 - Asterias, starfish, bipinnaria larva, w.m.
4 - Echinus, young sea urchin, radial section
5 - Development of sea urchin, eggs in different stages
6 - Echinus, sea urchin, pluteus larva
7 - Holothuria, sea cucumber, t.s.
8 - Holothuria, w.m. of limy bodies
9 - Bryozoa, moss animals, colony, sec.
10 - Lingula, Brachiopode, t.s. |