Atlantis (starship)
The Atlantis was a Federation starship that was in the service of Starfleet during the late 24th century.

Ensign Beckett Mariner served aboard the Atlantis during the 2370s, during which time nearly half the crew succumbed to a Kerplickian lice infestation. Embarrassed, Starfleet wrote off the incident as if the crew simply had mysteriously disappeared. 

Years later, so as to seem as more of a badass than she really was, Mariner started a rumor aboard the  that she was a specially trained black ops spy who had killed those lost aboard the Atlantis. 

In 2381, Honus, a Cerritos bartender, shared these rumors about what happened aboard the Atlantis with Ensigns Brad Boimler and Sam Rutherford which caused them to briefly second guess their relationship with Mariner. ()

Federation starships