| gastrointestinal parasites of cougars (felis concolor) in washington and the first report of ollulanus tricuspis in a sylvatic felid from north america. | gastrointestinal helminths including two species of cestodes (taenia omissa and t. ovis krabbei) and three species of nematodes (toxocara cati, cylicospirura subequalis and ollulanus tricuspis) are reported from two free-ranging cougars (felis concolor) in washington (usa). ollulanus tricuspis is reported for the first time from cougars and represents the first occurrence of this parasite in a sylvatic felid from north america. | 1992 | 1548792 |