"Ew! Calamari."
Jacob Kowalski's disgust at the parasite[src]

These parasites were a kind of magical creature that resembled a "spindly, waterborne spider", usually found living off water dragons.[1]


They could also be transmitted to humans, infecting their tear ducts — the best curative approach is, apparently, extraction using a pair of tweezers.[1] Their powerful venom caused human hosts to lose consciousness after a convulsive jerk if not adequately treated,[2] requiring several hours of rest for a full recover.[1] There were eye drops, a bright green liquid, that can help with the symptoms,[3] but it seemed this was not an adequate, definite cure.


Yusuf Kama having one of these parasites extracted from his eye with tweezers

In 1927, Yusuf Kama was infected with one of these parasites that, Newt Scamander speculated, was probably transmitted to him from a water dragon living in his sewer hideout in Paris.[1] When Kama attempted to contain Tina Goldstein, Newt Scamander, and Jacob Kowalski, so that he could freely find and kill Credence Barebone, the parasite's venom caused him to collapse, allowing them to escape.[2] They took the unconscious Kama to Nicholas Flamel's house, where they managed to extract the parasite, much to Jacob's disgust.[1]


Notes and references

*Disclosure: Some of the links above are affiliate links, meaning, at no additional cost to you, Fandom will earn a commission if you click through and make a purchase. Community content is available under CC-BY-SA unless otherwise noted.