White-bibbed Fruit-dove (Ptilinopus rivoli)

Closely related to P. solomonensis (and P. speciosus), and more distantly to P. superbus (and P. temminckii)#R; previously thought also to be allied to P. viridis and P. eugeniae. Race bellus has sometimes been considered a separate species, as, less often, has miquelii; relationships in this complex are difficult to determine, with morphological characters shared in such a way as to render the specific separation of any taxon problematic; the three taxa in the north (Geelvink Bay) and to the east of New Guinea (namely miquelii, rivoli and strophium), however, form a relatively distinctive group, and if they prove to be a distinct unit vocally this might separate them as one species. Inclusion of race buruanus (Buru) within prasinorrhous#R is accepted here, but museum specimens tend to show more yellow on undertail-coverts#R. Five subspecies recognized.