Short Description:

A small species The dark shyshark has a stocky body and a short, broad head. The snout is blunt and dorsally flattened. The eyes are large and oval-shaped, with a rudimentary nictitating membrane (protective third Eyelid) and a strong ridge underneath. The nostrils are very large, and are flanked by greatly expanded, triangular flaps of skin that reach the mouth. These nasal flaps cover a pair of deep grooves that connect the nasal excurrent (outflow) openings and the mouth. There are furrows at the corners of the mouth on both jaws. 

The skin is thick and covered by well-calcified leaf-like dermal denticles. The coloration is a plain brown above and while below, though some individuals have a series of faint darker saddle-like markings or black or white spots.

The brown shyshark is a sedentary, bottom-dwelling species; one tag-recapture study found that recaptured sharks had moved no more than 8 km from their original tagging location.Like its relatives in the genus, it exhibits a curious response of curling into a ring with its tail covering its eyes when threatened, hence the name "shyshark

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• Haploblepharus natalensis (Puffadder shyshark)