Pisces-class deep submergence vehicle
Pisces-class submersibles are three-person research deep-submergence vehicles designed and built by Hyco International Hydrodynamics of North Vancouver in British Columbia with a maximum operating depth of 2,000 m (6,560 ft). The vehicles have multiple view ports and sample collecting, environmental sensing, and instrument placement capabilities.
Source: Wikipedia — Pisces-class deep submergence vehicle (CC BY-SA 4.0)