McMillan's catshark, Parmaturus macmillani, is a catshark of the familyScyliorhinidae, in the order Carcharhiniformes, found in the deep waters of the lower continental slope around New Zealand. It can grow up to a length of 45 cm. It is known only from two New Zealand specimens, and three off southeastern Africa, at a depth of about 1,000m. This may be a rare species within the 1,000 to 1,500 m depth range currently being fished, or the captures at 1,000m may simply be at the shallow end of a much greater depth range. McMillan's cat shark is a small, rare and little-known deepwater shark.