Abstract: A trap intended for capturing mice, rats, snakes or the like alive consists of a receptacle, preferably a household jar (6) and a cover (2,115). The cover (2,115) has an opening which is closed by a pivotally arranged grating (113). In order to manufacture a cover (2,115) which is readily adapted to various diameters and threads on the neck (7) of the receptacle (6) the connection means of the cover (2,115) are provided in the form of snap acting webs (4). So as to prevent a captured animal from escaping the cover comprises a stop latch (101) for holding the grating (113) into contact with the contact face on the cover.