...and see text Bothriocephalus acheilognathi, also known as the Asian tapeworm, is a freshwater fish parasite that originated from China and Eastern Russia.
[1] B. acheilognathi has a fleshy scolex (head region) with an undeveloped terminal disc and two long attachment grooves called bothria positioned dorsoventrally.
In 1934, the Japanese helminthologist Satyu Yamaguti first described specimens from wild fish recovered from Ogura Lake, Japan.
In 1955, the Chinese helminthologist Liang-Sheng Yeh described more specimens recovered from grass carp (Ctenopharyngodon idella) in South China as Bothriocephalus gowkongensis.
[3][4] The natural host of Bothriocephalus acheilognathi is the grass carp which is native to the Amur River in China and eastern Russia.
The adult tapeworm is hermaphroditic; each proglottid has a complete set of both male and female reproductive organs and produces eggs via self-fertilization.
Once the infected copepods are eaten by the fish hosts, the procercoid rapidly transform into the plerocercoid stage and attaches to the intestinal gut wall, where it develops into the adult parasite over the course of 21–23 days.
Tinostat, Yomesan, Droncit are examples of drugs (when mixed in fish food with oil) that are effective in relieving infection.