BALL, I.R. & KHAN, R.A. (1976)
On Micropharynx parasitica Jägerskiöld, a marine planarian ectoparasitic on thorny skate, Raja radiata Donovan, from the North Atlantic Ocean. Journal of Fish Biology, 8 (5): 419–426
DOI: 10.1111/j.1095-8649.1976.tb03970.x