Centipedes in this genus feature distinctly club-like antennae and circumscribedsternal pore-fields that are subcircular or transversally elliptical, range from about 1 cm to about 7 cm in length, and have 37 to 91 pairs of legs. The Asian species Ballophilus pallidusmeasures only 11 mm in length and can have as few as 37 leg pairs, the minimum number found in this genus. Both B. fijiensis and B. giganteus can have as many as 91 leg pairs, the maximum number found in this genus, but B. giganteus is also notable for its large size, reaching75mm in length.