 Endemic to the southern tip of Africa, the range of the Izak catshark extends from Lüderitz, Namibia in the west to Durban, South Africa in the east. Older records further north along the East African coast (e.g. Somalia) most likely refer to other Holohalaelurus species. This abundant, bottom-dwelling species inhabits the outer continental shelf and upper continental slope, from 40 m (130 ft) to at least 1,075 m (3,527 ft) deep. Off South Africa, it is most common in areas with a wider continental shelf, and at depths of 100 – 200 m (330 – 660 ft) off the south coast and 200 – 300 m (660 – 980 ft) off the west coast. Females and juveniles tend to be found in shallower water than males. For the most part, the number of sharks in a given area remains largely constant throughout the year. However, sharks at the southernmost point of the Agulhas Bank may perform a small autumn migration towards the shore.
