Length 6-21 mm (Cranocephalus scleroticus 1). With characters of genusCranocephalus.
Kingdom Animalia Phylum Crustacea Class Malacostraca Subclass Eumalacostraca Superorder Peracarida Order Amphipoda Suborder Hyperiidea Infraorder Physocephalata Superfamily Platysceloidea Family Oxycephalidae Genus Cranocephalus Species Cranocephalus scleroticus