The long extinct and poorly attested Tasmanian languages are missing altogether from E16/E17/E18/E19/E20/E21/E22/E23/E24. The exact number of languages in evidence is uncertain but a tradition of scholarship ( Claire Bowern 2012 , Rhys Jones 1974 , Terry Crowley and R. M. W. Dixon 1981 , Wilhelm Schmidt 1952 , Claire Bowern and Tyler Lau 2011 ) recognizes some seven languages which may be divided up as Western Coastal Tasmanian, the Northeastern Tasmanian dialect chain, Oyster Bay-Big River-Little Swanport, Port Sorell, South-Eastern Tasmanian Hinterland, Bruny Island and Ben Lomond-Cape Portland,