Cave fishers are cavern-dwelling crustaceans similar in appearance to a large crayfish with a long proboscis. They have a grayish coloration that allows them to better to blend into their natural habitat and a flat body that allows them to crawl through narrow openings or to press tightly against overhangs and ledges. They hunt by dangling web-like filaments to capture prey but are not averse to shooting these filaments for a more active hunting style. Once reeled in, they go to work with their sharp pincer-like claws, tearing off pieces of flesh or even entire limbs.