USS Ptolemy (NCC-150)

The 'USS Ptolemy (') was a Federation starship, a science vessel in Starfleet service in the mid-23rd century. Captain Serult was the ship's commanding officer. 

History
In the year 2270, the Ptolemy was one of the ships responding to the crisis aboard Deep Space Station K-13 in the Deneva system, whose crew suffered infection by blastoneuron neural parasites. A Starfleet away team eradicated the infection from the space station, but the Ptolemy was lost in battle against a Na'kuhl] [[destroyer from the 29th century.