Tokyo Food Safety Information Center » Good things to know »Food parasites »Rhadinorhynchus, theory-headed worm

Rhadinorhynchus, theory-headed worm

Characteristics of Rhadinorhynchus

Color

Reddish orange

Size

Body length of 2-3 cm.  Body width of 2-3 mm or so.

Parasitize targets

Parasitizing visceral organs.

Characteristics

Cylindrical or spindle-shaped body with a proboscis at the body end used to attach to intestinal canal of fish.

Impacts on human

It does not parasitize human beings.

Major seafood hosts

Pacific saury, skipjack, mackerel, yellowtail

 

Rhadinorhynchus sticking out of vent of Pacific saury
Figure: Rhadinorhynchus sticking out of vent of Pacific saury
Rhadinorhynchus
Figure: Rhadinorhynchus

 

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