Destrii or the Primatrix Destriianatos, is a fictional character who appeared in the Doctor Who Magazine comic strip based on the long-running British science fiction television series Doctor Who. She was a companion of the Eighth Doctor. Character history Destrii is an amphibious humanoid with scaly skin, claws and a face resembling that of a fish. She first appears in Ophidius, written by Scott Gray and drawn by Martin Geraghty and Robin Smith. The Doctor and Izzy encounter her inside the gargantuan snake-like spacecraft known as Ophidius, which swallowed the TARDIS. She is extremely agile, shows remarkable combat abilities and has a knowledge of Earth's popular culture, but is also initially unprincipled and quick to exhibit violent behavior. Destrii survived on her own inside the belly of Ophidius for a long time while being pursued by the aliens that control the world-snake. To evade pursuit, she tricks Izzy into using a machine which places their minds in each other's bodies. Destrii tries to pose as Izzy and escape with the Doctor in the TARDIS. The Doctor, seeing her violent tendencies, sees through the deception. However, before the Doctor can do anything to reverse the mind switch, Destrii, in Izzy's body, is seemingly disintegrated by a member of the predatory (but intelligent) species known as the Mobox. While Izzy is adjusting to the trauma of being trapped in an alien body, she is kidnapped by representatives of Destrii's mother, the Matriax Scalamanthia of the planet Oblivion. Retracing his steps with the help of former companion Fey, the Doctor finds Ophidius anchored in the skies above the Mobox homeworld, and Destrii alive in its jungles. It transpires that the Mobox have the ability to retain the patterns of those they disintegrate and reconstitute them. B'rostt, the Mobox who attacked Destrii, reconstituted Destrii and left her in the jungles to die. Meanwhile B'rostt left to build a new empire on his planet. Destrii, however, was made of sterner stuff and survived, even in Izzy's body. The Doctor takes Destrii with him, determined to find Izzy and restore his companion to her rightful body (Uroboros, DWM #319-#322). On Oblivion, the Doctor discovers that Destrii is a member of a race that had been genetically manipulated so that no two individuals are alike. Generations ago, the people of Oblivion had looked human until the ruling families attacked their enemies using a plague that stripped its