Vasum muricatum has a large, thick and heavyshell that reaches a length of 50 – 100 mm. The shell is quite elongated, conical or vase-shaped. There are blunt spines at the shoulder and near the base. The shell is off- white with black or dark brownperiostracum externally, while the aperture is usually white. The columella has 5 strong folds, the first and third being the largest.