1) Arthropod family 2) Family mysidae 3) Small shrimp-like crustaceans 
Mysidae is the largest family of crustaceans in the order Mysida, with over 1000 species in around 170 genera. ==Characteristics== Members of the family Mysidae are distinguished from other mysids by the fact that the first pereopod (walking leg) has a well-developed exopod (outer branch), the carpopropodus of the endopod (inner branch) of the 3rd...
[n] - small shrimp-like crustaceans
family Mysidae noun small shrimp-like crustaceans