Epicarideans, parasitic isopods found in and on other crustaceans, are cryptic in nature. Detecting and collecting these parasites can be difficult and requires special techniques. The present paper reviews these techniques, providing helpful information on locating the isopods and isolating them from their hosts. In addition, information on preservation of these animals is provided. Using these methods, ecologists and other researchers could provide critical material for future studies on the life histories and evolutionary relationships of these parasites.