Folia Parasitologica, vol. 64 (2017)

Folia Parasitologica 64:021 (2017) | DOI: 10.14411/fp.2017.021

An adult cystidicolid nematode (Nematoda: Cystidicolidae) from the subcutaneous tissue around the eye of percupinefish, Diodon nichthemerus Cuvier

Kozue Sasaki1, Yoshimi Miyagawa2, Itsuki Kiyatake2, Kiyoko Onda3, Takaomi Ito2, Mitsuhiko Asakawa1
1 School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan;
2 Osaka Aquarium Kaiyukan, Osaka, Japan;
3 Nifrel, Osaka, Japan

Three adult nematode specimens, all ovigerous females belonging to the family Cystidicolidae Skryabin, 1946, were found for the first time in the subcutaneous tissue around the eye of the captive porcupinefish Diodon nichthemerus Cuvier at a public aquarium in Osaka, Japan. Because no male was available, these could not be identified to the genus and species. This case highlights the risk of parasitism in aquaculture puffer fish, as these may ingest small shrimp, which probably act as intermediate hosts for the nematode.

Keywords: Habronematoidea, parasite, marine fish, Diodontidae, Japan

Received: May 16, 2017; Accepted: June 20, 2017; Published online: July 10, 2017


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