These are items from the invisible "Temporary Items Folder". The system will place them in the trash like this if you have a freeze or crash (or some other strange events) in case you might need them. Normally you don't. These items are normally trashed by the system from the Temp Items folder, unbeknownst to you.
OS 9 had a bug that did not allow it to properly purge the Temporary Items Folder when it was supposed to (crash or not). The update to 9.1 fixed this problem, so now you are seeing the correct behavior (as you might have seen previously when running 8.5 or 8.6) .
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Kill the brain and you kill the ghoul.