| Cryptocotyle | |
|---|---|
 | |
| The metacercariae, encysted in the fins of the round goby | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Class: | Trematoda |
| Order: | Plagiorchiida |
| Family: | Heterophyidae |
| Genus: | Cryptocotyle Lühe, 1899 |
| Synonyms | |
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Cryptocotyle is a genus of trematodes from the family Heterophyidae. The definitive hosts of the parasites are fish-eating birds and mammals. The metacercariae are visible in the skin of infected fish as "black spots".
