"Carcinology is a branch of zoology that consists of the study of crustaceans, a group of arthropods that includes lobsters, crayfish, shrimp, krill, barnacles and crabs. A person who study Crustaceans are carcinologists or occasionally a malacostracologist, crustaceologist, or a crustalogist.The word carcinology derives from Greek \u03BA\u03B1\u03C1\u03BA\u03AF\u03BD\u03BF\u03C2, kark\u00EDnos, \"crab\"; and -\u03BB\u03BF\u03B3\u03AF\u03B1, -logia."@en .