Showing 17–32 of 286 results
Arbacia pluteus, a genus of sea urchin found in the Atlantic and Pacific ocean. A free-swimming ...
Bivalent entrance and modifications of sperm.
Starfish, Gastrula. This is the early, mid and late form.
Blastula (coeloblastic). Stained to show the individual cells, w.m.
Early and late cleavage. Abundance of material and variety of stages, w.m.
All stages through the bipinnaria on one slide, thin sections.
Asterias (Starfish), Embryology, Echinodermata, Prepared Slide Early and late cleavage. Thin secti...
Asterias (Starfish), Embryology, Prepared Slide. Brachiolaria, a later larval form, w.m.
All stages through the bipinnaria on one slide, w.m.
Starfish ovary. Sections show mature and developing eggs.
C.s. of ray to show general structure.
Section of lung showing typical pathology.
Experiment with the world of air, atmosphere, and pollutants! This kit presents information relating...
Planula, a free-swimming larval form, w.m.
Smear of encycted forms.