Zhoushan Island
All recent specimens of the Borneo shark have been collected solely from fishery landing sites at Mukah in Sarawak, despite thorough surveys across the rest of Borneo (including at the locality of the type specimen). Thus, its range may now be restricted to shallow, inshore waters in northwestern Borneo. Of the five earlier specimens, four came from Borneo and one from Zhoushan Island in China, hinting at a wider historical distribution. This species was also recorded from Borongan in the Philippines in 1895, and Java in 1933; these records cannot be substantiated and there have been no subsequent sightings from these areas.