A total of 19 cestodes, Ophiotaenia sp., were recovered by deworming from adult Colorado River Squawfish (Pteichocheilius licius) maintained at the U.S. National Fish Hatchery at Willow Beach, Arizona. These specimens differ from other described species and are named Ophiotaenia critica.
Mpoame, Mbida and Landers, E. James
"Ophiotaenia critica (Cestoda: Proteocephalidae), a parasite of the Colorado River squawfish,"
Great Basin Naturalist: Vol. 41
, Article 10.
Available at: http://scholarsarchive.byu.edu/gbn/vol41/iss4/10