Hypselodoris variobranchia is a species of sea slug or dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.
Hypselodoris variobranchia has a deep purple body with a broad solid white border to the mantle. The bulb of the rhinophores is orange, with purple sheaths. The gills may be orange or deep purple. There is a tall gill pocket which is also deep purple in colour. This species has frequently been reported as Hypselodoris bullocki.This is a large nudibranch, reaching 50 mm in length.
The holotype of this nudibranch was collected at 30 m depth from Aphol's Rock, Maricaban Island, Tingloy, Batangas Province, Luzon Island, Philippines, 13°39′31″N 120°54′05″E / 13.6586°N 120.9013°E / 13.6586; 120.9013. It is a common and widespread species which has been reported from Queensland, Australia; Malaysia; Indonesia and Okinawa, Japan but frequently mistaken for Hypselodoris bullocki or Hypselodoris apolegma.
