The Crusty Fossils
Carolyn C. Smith
Your feedback is important to us!
After viewing our curriculum units, please take a few minutes to help us understand how the units, which were created by public school teachers, may be useful to others.
Give FeedbackPea Crab (Pinnixia)
The pea crab is a small round little fellow. He measures only about 1/4 inch in diameter. It is brown or yellowish in color. These little creatures make their homes within the tube of various worms. Some live in the burrows of the mud shrimp, gill baskets of sea squirts, and the cavity of bivalves. Each species of pea crabs prefers its host as a home. Not only are homes provided for the pea crab but also safety, food, and oxygen. Although they live on other animals, they are not considered parasites.