"Specimens"

The culture supplied includes copepods in various stages of development.

Planorbids, mixed genera. Compare these attractive, spiral-shelled, herbivorous freshwater specimens with other snails. They will eat aquarium plants

The nocturnal hermit crab uses “borrowed” shells to protect its relatively soft body, changing shells as it grows larger.

Mixed genera. Also known as scuds, amphipods are freshwater crustaceans.

Black Planaria are a flatworm commonly used in science fair projects. They do not bite and move very slowly, making them easy for young students to observe.

These bottom-dwelling bivalved crustaceans are found in nearly every aquatic habitat.

Create a balanced ecosystem in your aquarium with the addition of these small, freshwater algae eaters. They reproduce rapidly, laying their eggs on the glass sides of the aquarium.

These small marine crustaceans are supplied as adults, and measure approximately ¹/₄" in size at the time of shipment.

Illustrate the structure, feeding habits, responses, and reproduction of a typical Anthozoan.