The spotted houndshark grows to a length around  or exceptionally . It is a robust species with a rounded snout, widely separated, lobed nasal flaps, and long upper lip grooves that extend as far as the junction of the jawbones.
The spotted houndshark grows to a size of roughly or exceptionally . This species has a robust build, characterized by a rounded snout, wide-spaced, lobed nasal flaps, and long upper lip grooves that reach the jawbone's juncture.