Mysis americana Smith, 1873 Neomysis americana is an "extremely common"[2] species of opossum shrimp along the Atlantic coast of North and South America.

The species has a disjunct distribution, being present in an area extending from the Saint Lawrence River to Florida, and separately in parts of Argentina (Blanca Bay, Anegada Bay and Samborombón Bay).

[3] N. americana is an important prey item for a number of fish species, including the Atlantic silverside, the bluefish and the windowpane flounder, Scophthalmus aquosus.

[4] Adults typically have a carapace length of 2.5–4 millimetres (0.10–0.16 in).

[3] This Malacostraca related article is a stub.