Capillaria feliscati (also known as Pearsonema feliscati, the cat bladder worm is a worm that affects cats, and seldom dogs. Its main final hosts are wild carnivores (foxes, wolves, coyotes, hedgehogs, etc.). It is a urinary tract nematode, though its occurrence is rare. C. feliscati are small, delicate, yellowish, thread-like worms. Adults are approximately between 16 and 53 millimetres (0.63 and 2.09 in) in length.