The only species in the genus, Geobia subterranea, has several adaptations for a subterranean lifestyle, such as lack of eyes, pigments, and creeping sole, i.e., the ventral side has only some sparse cilia, unlike most other genera.

The cutaneous musculature is very strong,[1] especially in the anterior region,[2] possibly as an adaptation due to its burrowing habits.

Its known distribution includes the states of Rio de Janeiro, São Paulo and Santa Catarina.

[3] It is known to feed on earthworms,[2] attaching its body to the prey and sucking the contents after releasing digestive enzymes.

The planarian's colorless body usually acquires a brownish or pinkish tinge after a meal due to the gut contents.