Srilankametrus gravimanus is a species of scorpion belonging to the family Scorpionidae.

[1] This large scorpion has a total length of about 75 to 110 mm.

Male has slightly longer pedipalp femur and patella than female.

Pedipalp patella is smooth, and without pronounced internal tubercle.

[2][3] During the hemolytic and enzymic investigations of the crude venom, both direct and indirect (phospholipase A) hemolysins were identified from the species.