Nymphs. Dryad is another name for a tree-nymph, and they are related to water-nymphs and nymphs of the forest, the kind that Artemis has for attendants.
Centaurs could be wild and violent, nymphs usually not.
Nymphs were spirits in Greek and Roman mythology. They would take care of trees, flowers, and animals as well as beaches, meadows, and rivers. Male Nymphs were called Satyrs, Panes, Potamoi and Tritons. Dryads were tree nymphs generally said to live in oak trees.
Nereids, daughters of Nereus, are the 50 sea nymphs. Some of these include Amphitrite, the wife of Poseidon and Thetis, the mother of Achilles. Other sea nymphs included the Atlantiades, daughters of Atlas, like Calypso, but the Nereids are the traditional "sea nymphs".
Naiads
hard covering
what is the hard covering and the jointed legs of the crabs
Nymphs. Wood nymphs are dryads/ napaeae; tree nymphs are hamadryads; water, stream and fountain nymphs are naiads; sea nymphs are nereids; ocean nymphs are oceanids; and mountain nymphs are oreads.
exskeleton
The beetle's body covering is hard. It is the beetles exoskeleton and is used to protect the beetle from predators.
A hard outer covering protects an insect's soft body and gives the insect its shape.
hard
A lot of animals have hard body covering which makes them hard to become prey. However, animals such as hippopotamus, rhinoceros, and elephants have a hard cover of skin on their body.
Cornea
sex
the hull
The hard external covering of insects is made of a substance called chitin.