1.b> = acoelomater>; 2.b> , ( i>) [.i> .i> amphicoelousr>, heterocoelousr>, opisthocoelousr>, procoelousr>].
2.b> , ( i>) [.i> .i> amphicoelousr>, heterocoelousr>, opisthocoelousr>, procoelousr>].
Developed by George Keretchashvili