Astacus astacus, structure of the body and anatomy of a male crayfish. Linearly enlarged 3 times. The lifelike model shows on the left side, the differentiated external limbs, on the right side, the internal structure of the crayfish. Movable claws are detachable to demonstrate the position of the internal organs. The model is particularly valuable for demonstration. Separates into 13 parts. On a stand with base.
