The energy focusing ship.
The energy focusing ship on Valerie Archer's monitor.
The energy focusing ship was a ship utilized by Species 8472. Larger than its bioship counterpart, the vessel was used to focus energy from other bioships to launch a large weapon capable of destroying a planet.
An energy focusing ship was used to destroy a Borg planet in 2373, with assistance by 8 other bioships. (VOY: "Scorpion")
A side-view of the energy focusing ship was visible on Valerie Archer's Species 8472 desktop monitor. (VOY: "In the Flesh")
Apocrypha
The vessel is described as a "frigate" in Star Trek: Armada II, and it can use its energy focusing ability while grouped with anywhere from four to 8 other ships.