Has in the past been placed in monospecific Dissemurulus or in Dissemuroides. Often treated as conspecific with D. paradiseus, but differs in its wholly dissimilar tail structure (4); short, mainly upright vs longer, back-curling frontal crest (2); slightly smaller size (allow 1); suggested vocal distinctiveness difficult to assess owing to high incidence of mimicry in Dicrurus. Few intergrades with race ceylonicus of D. paradiseus formerly reported along border between wet and dry zones, but interbreeding not now possible since suitable habitat no longer remains between the two ecological zones, now completely separated. Monotypic.
Wet zone of SW Sri Lanka: from R Deduru Oya (in N) S to R Walawe (in SW).
Food and feeding
Status and conservation
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