It comprises 3 species, all of which are found in Africa.

The rails are a bird family comprising nearly 150 species.

The Scaphiopodidae are a small family, comprising only seven species.

This systems comprises four reactions and five different molecular species.

It seems to comprise 2 species found in Africa.

It comprises 2 species, both of which are native to Madagascar.

The family is divided into four genera, which together comprise 20 or 21 species.

The group as a whole comprises fifteen species in three genera.

It comprises six species, five of which are native to the neotropics.

The flora is known to comprise almost 1,000 species.