Abstract: A relatively inexpensive, simple and practical device for interposition between the seat of a toilet stool bowl and the upper edge of the bowl, for collecting, when in position, the fecal discharge of a patient whose feces is to be examined; the device normally being folded and stored in a sterile mailer together with a wooden spatula; the specimen collecter being produced from biodegradable materials, and including a foldable base plate which has a forward margin spaced from the forward portion of the toilet bowl to permit ready discharge of urine without contaminating or diluting the fecal sample, and the base element, when disposed in an unfolded or flat condition, having a rear tab clamped beneath the stool seat and disposing a bag-like element, adhesively secured to the base plate in an optimum position to receive the fecal specimen; the bag-like element being produced from a disposable paper-product material similar to that from which disposable diapers are produced; the bag-like element having a transv