@article {mortensen_extraordinary_1933, title = {On an extraordinary ophiurid, Ophiocanops fugiens Koehler. With remarks on Astrogymnotes, Ophiopteron, and on an albino Ophiocoma}, journal = {Videnskabelige Meddelelser fra Dansk naturhistorisk Forening}, volume = {93}, year = {1933}, pages = {1{\textendash}22}, author = {Mortensen, T.} } @article {92, title = {Echinoidea and Ophiuroidea}, journal = {Discovery Report}, volume = {12}, year = {1936}, pages = {199{\textendash}348}, author = {Mortensen, T.} } @article {91, title = {On an extraordinary ophiurid, Ophiocanops fugiens Koehler. With remarks on Astrogymnotes, Ophiopteron, and on an albino Ophiocoma}, journal = {Videnskabelige Meddelelser fra Dansk naturhistorisk Forening}, volume = {93}, year = {1933}, pages = {1{\textendash}22}, author = {Mortensen, T.} }