Four pore forming toxins have been identified and purified from venom extracted from nematocysts:CfTX-1 and CfTX-2 and CfTX-A and CfTXB The molecular weight, measured by SDS-PAGE, is: CfTX-1: 43 kDA, CfTX-2: 45 kDA, CfTX-A: 40 kDA and CfTX-B: 42 kDA.