Tags: Crustacean.
Branchinecta longiantenna is a rare species of crustacean in the family Branchinectidae and the order Anostraca the fairy shrimp. Its common name is longhorn fairy shrimp. It is endemic to California in the United States where there are only four known populations. It is a federally listed endangered species of the United States.This fairy shrimp is between one and two centimeters in length and differs from other fairy shrimp in the shape of its antennae.