| cylicospirura species (nematoda: spirocercidae) and stomach nodules in cougars (puma concolor) and bobcats (lynx rufus) in oregon. | the stomachs and proximal duodena of 160 cougars (puma concolor) and 17 bobcats (lynx rufus), obtained throughout oregon during 7 yr, were examined for cylicospirura spp. and associated lesions. prevalence in cougars was 73%, with a range in intensity of 1-562 worms. the mean diameter of nodules was 1.2 cm (sd=0.5), and many extended through the submucosa to the muscularis. about 83% of cougars had nodules; most nodules contained worms, but 14% of the smaller nodules (<0.2 cm) contained porcupin ... | 2011 | 21270003 |