Oxygen-carrying protein colored substance of red plasma in blood of some crustaceans [McLaughlin, 1980].
Oxygen-carrying protein coloring substance of red plasma in blood, found in some crustaceans (e.g., Ostracoda), may be colored or colorless in conchostracans, present also in blood of anostracans, cladocerans, notostracans, some harpacticid and parasitic copepods, branchiurans, and some parasite cirripeds [Moore and McCormick, 1969].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.