Elasmobranchii waa subclass of Chondrichthyes or cartilaginous fish, including the sharks (superorder Selachii) and the rays, skates, and sawfish (superorder Batoidea). Xubnaha subclass waxaa lagu gartaa inay leeyihiin shan ilaa toddobo lammaane oo dalool ah oo si gooni ah u furaya dibedda, baalal adag oo dhabarka ah iyo boodhadh yar oo yaryar oo maqaarka ku yaal. Ilkaha waxay ku jiraan dhowr taxane; daanka kore kuma milmo madaxa, daanka hoose wuxuu la xidhiidhaa kan sare. Faahfaahinta daankaan ayaa ku kala duwan noocyada, waxayna gacan ka geystaan kala soocida clades-ka kala duwan ee laastikada. Baalasha pelvic ee ragga ayaa loo beddelay inay abuuraan xirmooyin dabaasha si loogu wareejiyo shahwada.
kalluunka loo yaqaano (Selachii) iyo kalluunka loo yaqaano rays, skates, iyo sawfish ( Batoidea)