Velvet Worm

Velvet worms are caterpillar-like invertebrates, that release a jet of slime from their slime glands, in order to hunt down their prey. They also use it for self defense.

Description
Velvet worms are invertebrates belonging to the phylum Onychophora, or "claw bearers" (referring to the small retractable claw found at the terminus of each leg). While not technically worms, they are ancient creatures in evolutionary terms, remaining largely unchanged for the last 400 million years. They are particularly unusual for their hydrostatic structure; they move without conventional muscles, instead pumping fluids around their bodies to create motion. These tiny carnivores are particularly unique for their ability to ensnare prey at range using slimy mucous fired from two pores on the head. As the mucous dries, it entraps small creatures, allowing the velvet worm to consume them at leisure. This particular species, Euperipatoides Rowelli, is especially remarkable; despite their extremely primitive brains, they hunt and live in packs, with a strict social matriarchal hierarchy.