I noticed this "worm" on the edge of a leaf in a photo stack of Comatricha slime mold after processing. The slime mold sporangia are approximately 1mm tall, for scale. I realize Onychophora is a stretch, especially since this is way outside the range, but tagging it with that ID in hopes someone might weigh in or point me in a better direction. On Hedera helix leaf on edge of very dense ivy layer. Lots of moisture (very fresh myxomycetes sporangia from various genera found at the same time)