Unknown specie and genera. Could be Epiperipatus spp, even a new specie. In analysis.
The biggest specie described in the World , publish in 2010.
Paper: http://www.scielo.sa.cr/pdf/rbt/v58n4/a06v58n4.pdf
This observation was made with Brian Kubicki, Federico Granados, Cristian Herrera and Allan Solano.
The velvet worms (Onychophora  literally "claw bearers") are a minor Ecdysozoan phylum. The segmented worm-like organisms have tiny eyes, antennae, multiple pairs of legs and slime glands. Most common in tropical regions of the Southern Hemisphere, they prey on smaller animals such as insects, which they catch by squirting an adhesive slime. In modern zoology they are particularly renowned for their curious mating behaviour and for bearing live young. They are becoming increasingly popular as...