• Caption: Common Name: mysid shrimp, Magnification: 2.75x, Notes: called opposum shrimp because the females will brood their young. They are more closely related to isopods, amphipods, and cumaceans than they are to true shrimp, Order: Mysida, Family: Mysidae, Location: Beneath the Golden Gate Bridge, San Francisco, California, Latitude: 37.82239565, Longitude: -122.48434066