"VWR"

With stiff 'arms' radiating in all directions, these microscopic organisms look like sea urchins

This brightly colored marine anemone has unusually long tentacles, making it stand out in almost any aquarium.

Limulus polyphemus. A true "living fossil", this representative of the class Meristomata is one of only five living still in existence. The crab is the most widely studied Meristomata because of their large compound eyes and their copper-based blue blood. It thrives in a marine aquarium such as WARD’S Marine Touch Tank. Culture instructions are included. Size: 1–3". Note: Shipped overnight. Additional shipping fee applies.

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.

Two or more species of annelids are included

Demonstrates isogamous reproduction where gametes are similar in appearance and behavior. The included copymaster details asexual and sexual versions of the life cycle. Cultures include Chlamydomonas reinhardtii(+) and (-).

Usually found in freshwater and mosses, this organism has a hard umbrella shaped shell or "test", out of which finger-like pseudopodia project.

Test cylindrical, covered with sand granules. Soil-water medium.

Characterized by pseudopods; with or without a shell (test).

Hay medium. Characterized by cilia; nearly all possess two types of nuclei.

Members of the Pelomyxa genus look very much like Amoeba. Pelomyxa, however, have many nuclei, whereas Amoeba have only one.

Paramecium caudatum is a common protist that inhabits a variety of aquatic ecosystems.

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.

One culture containing brown, black and white planaria is useful for comparative study.

Philodina sp. Easy to culture and easy to examine under a microscope because of the lack of a lorica (shell), these typical rotifers are perfect for general study. Culture instructions are included.

Echinodorus brevipedicellatus
This unusual plant has broad, swordlike leaves.