Thelastomatoidea is a superfamily of nematodes. There are 18 species of Thelastomatoidea, in 9 genera and 1 family. It includes groups like Thelastomatidae.
Definition: overall repetitive or reflective pattern in the body of one individual of this taxon. eg: bilateral symmetry, rotational symmetry, radial symmetry
Definition: motion characterized by wave-like movement patterns that act to propel an animal forward. eg: crawling in snakes, or swimming in the lamprey. Typically utilized by limbless animals