Portal:crustaceans Did You Know 8

... that crayfish of the Madagascan genus Astacoides (pictured) have fewer gills than any other crayfish?
... that Yongjiacaris represents the second report of freshwater caridean shrimp from the Mesozoic era?
... that the bioluminescent ostracod Vargula hilgendorfii, named after Franz Hilgendorf, was used as a light source by Japanese soldiers in World War II?
... that the "extremely productive carcinologist" American Raymond B. Manning amassed the world's largest collection of mantis shrimp?