To solve the problem that when dividing the 17 outer shell of a main body of 1 Eryum for conventional collection in collecting the 11 reproduction nests of the main body of 1 Eryum, the 11 reproduction nests are broken by the inserted 2 Eryum splator or the 13 intestine with 10 mouth is broken. When collecting the eleven reproduction nests of the eleven body, the eleven reproduction nests of the eleven body can be collected without breaking the eleven reproduction nests of the eleven body by cutting the eleven shell 17 on the side of the eleven body into a circular shape together with the eleven reproduction nests by the operation of 21 and 20 arms. Also, since the thirteen intestine connected to the ten-neck can be excised together with the ten-neck without being destroyed, the thirteen intestine can be separated from the main body of the first Eryum...

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