An arrangement for separating cylindrical bodies, such as parisons for hollow bodies, which have at least one protuberance at a first end, has a pair of parallel guide elements between which the cylindrical bodies can be erected in that the cylindrical bodies hang on the guide elements in each case by way of the protuberance. The separating arrangement here has a detecting arrangement with an ejector by means of which cylindrical bodies which, although hanging on the guide elements by way of the protuberance, do not have their second end hanging downwards or are nested one inside the other, are detected and ejected from the individual row.