Chlorocruorin :: Chlorocruorin (n.) A green substance, supposed to be the cause of the green color of the blood in some species of worms..
Cruor :: Cruor (n.) The coloring matter of the blood; the clotted portion of coagulated blood, containing the coloring matter; gore..
Cruorin :: Cruorin (n.) The coloring matter of the blood in the living animal; haemoglobin.