Taxis response is to move towards or away from the stimulus. If the organism moves towards the stimulus the taxis is positive, while if it moves away the taxis is negative. For example, flagellate protozoans of the genus "Euglena" move towards a light source. This reaction or behaviour is called "positive phototaxis", since phototaxis refers to a response to light and the organism is moving towards the stimulus. Many types of taxis have been identified, including: Depending on the type of sensory organs present, a taxis can be classified as a "klinotaxis", where an organism continuously samples the environment to determine
Taxis-Bordogna-Valnigra of the family's surname was "Bordogna von Taxis". Charles VI, Holy Roman Emperor elevated the Bordogna von Taxis family to the rank of barons and then later to counts under the surname "Taxis-Bordogna-Valnigra". The baronial branch held the Lieutenant Postmaster General position in Trento and the Adige and the counts held the Lieutenant Postmaster General position in Bolzano. The descendants of Lamoral, Baron Taxis di Bordogna e Valnigra (1900–1966) from his marriage to Princess Theresia Christiane of Saxe-Coburg and Gotha (1902–1990), daughter of Prince August Leopold of Saxe-Coburg and Gotha and his wife Archduchess Karoline Marie of Austria, are known