DidymothallusDidymothallus is a genus of viviparous brotulas found in the Indian and western Pacific Oceans.SpeciesThere are currently four recognized species in this genus:Didymothallus criniceps Schwarzhans & Peter [Rask Møller|Møller], 2007Didymothallus mizolepis Didymothallus nudigena Schwarzhans & Møller, 2011Didymothallus pruvosti Schwarzhans & Møller, 2007