Tokyo Food Safety Information Center » Good things to know »Food parasites »Tentacularia, tapeworm (tetrarhynchoidea)

Tentacularia, tapeworm (tetrarhynchoidea)

Characteristics of Tentacularia


Milky white


Larva of a size of a rice grain

Parasitize targets

Parasitizing visceral organs and ventral muscles.


Having four proboscises on head area, which are elastic and relatively small.  (Proboscis: An adhesive organ that is of a cylindrical shape and is expandable and shrinkable)

Impacts on human

It does not parasitize human beings.  It is often found parasitizing visceral organs of skipjacks in spring and summer, resulting in complaints.

Major seafood hosts

Skipjack, mackerel


Tentacularia in skipjack muscle
Figure: Tentacularia in skipjack muscle
Figure: Tentacularia


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