A Vissian stratopod

The Vissian stratopod was a small two-man shuttlepod, utilized by the Vissians, equipped with a large round viewport at the bow. A stratopod carried twice the deflector shielding of the larger Vissian starships, and its navigation control was based on five spatial axes.

Captain Drennik took Captain Archer to survey a hypergiant star and the two were able to pass through its hydrogen layer in a stratopod. (ENT: "Cogenitor")

In the final draft script of "Cogenitor", this type of spacecraft was described as "a small, spherical alien pod (like a hi-tech bathysphere)".