Butterfly Fish: They are found on the reefs of the Atlantic, Indian and Pacific oceans. A length of 6 inches is average. Their small size, rounded bodies and slightly concave foreheads distinguish them from the larger angelfish.
Nudibranches are soft-bodied, marine gastropod mollusks which shed their shell after their larval stage. They are noted for their often extraordinary colors and striking forms. The clade Nudibranchia is the largest clade within the heterobranchs, with more than 3,000 described species. They live at virtually all depths of salt water.