26th Annual Eastern Fish Health Workshop
Workshop with papers on diseases, treatment, and disease resistance and immunology of fish, shrimp, corals, and lobsters.
(Score: 0.648)
Definition:
Horseshoe crabs belong to a separate class, called Merostomata, of the phylum of Arthropods. Though they are called "crabs," they are, in fact, an ancient species that is most closely related to trilobytes that existed 544 million years ago. [Adapted from link]