The gulf
catshark is similar to a number of different species
in this genus that live in Australian seas, many of
which have yet to be formally described. Members of
this genus have no nasoral grooves, the nasal flaps
do not reach the mouth, the anal fin is about the same
size or slightly larger than second dorsal and positioned
far in front of its origin. The gulf catshark is most
easily distinguished by its color pattern, which consists
of white spots on a dark brown or mottled grayish brown
background, while the ventral surface is lighter and
unspotted.
