De Vis, 1898,
Suku, Vanapa Valley, south-eastern New Guinea.
Until recently considered conspecific with R. crassirostris, but differs in blackish underparts with whitish spots vs whitish underparts with blackish streaks in female (3); strikingly longer bill (allow 3), and with horn-coloured base vs all blackish (1); larger size (irrespective of bill length at least 1)#R. Proposed race viridescens (Dawong, in Herzog Mts) appears undiagnosable. Monotypic.
EC to SE New Guinea, including Huon Peninsula (Herzog Mts; possibly also Kuper Range).
Food and feeding
Status and conservation
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