Published online on 19. November 2015 Distribution and comments on the morphology of Centroscymnus owstonii Garman, 1906 (Squaliformes: Somniosidae), with focus on its occurrence in the Indian Ocean Simon Weigmann, Diego F. B. Vaz, William T. White, Marcelo R. de Carvalho, Ralf Thiel ABSTRACT: The Roughskin Dogfish Centroscymnus owstonii is one of the most widespread