Isle of Pines and Loyalty Islands.
Belongs to the large species-group centred on P. purpuratus (which see); within this, forms part of the subgroup centred on P. porphyraceus (which see). Often considered closest to P. richardsii, and has also been linked with P. pelewensis and P. porphyraceus; genetic data suggest closest to P. ponapensis and P. porphyraceus#R. Specific name often misspelt greyii. Monotypic.
Ndai I (Gower), in CE Solomons, and Santa Cruz Is, Banks Group (Reef Is) and Vanuatu S to Loyalty Is, New Caledonia and I of Pines.
Food and feeding
Status and conservation
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