Legs;Basis;Exopod;Endopod P1;1-I;"I-0, 0-1, II-2-0";"0-0, 0-0, 0-2-0" P2;1-0;"I-0, I-1, 0-I+1-0";"0-0, 0-1-0+" P3;1-0;"I-0, I-1, 0-I+1-0";"0-0, 0-1-0+" P4;1-0;"I-0, 0-1, 0-I+1-I";absent