Hydra derived its name from the resemblance of the fiber cable to the fresh water polyp of the genus Hydra. The complexity of the instrument, however, may make inexperienced users feel that the name was selected for the following definition:
Hydra n. A multifarious source of destruction that cannot be eradicated by a single attempt.1 We certainly hope that this is not the case. As Hercules required planning and perseverance in conquering the mythical monster Hydra, so should users of the Hydra instrument likewise take the time and effort to carefully plan their strategy and be well prepared for the observing process. In that manner, Hydra shall not be a foe, but rather a friend, capable of providing a wealth of valuable astronomical data.