Chuuk Lagoon
"P. pelagicus" is located on the Nomoi Islands, Chuuk Lagoon, and Namonuito Atoll. All three locations are within the Federated States of Micronesia. "P. p. pelagicus" is found on the Nomoi islands, while "P. p. insularis" is located on the other two sites. The range of the two subspecies is separated by .