Mantis (Barotrauma)

The Mantis is a species of horse-sized crustacean that was discovered within the oceans of Europa.

Appearance
Despite the name, they more resemble giant shrimp than they do with Mantises. They are amber in coloration, with a highly durable carapace that is reported to withstand bullet shots at close range, making firearms less of an option to defend against these creatures. They have three sets of limbs, two of which they can use to crawl along the seafloor and the third able to be used to attack prey. Like Crawlers, their armor doesn't extend to their underbelly, making that their weakspot to most predators if they can reach it.

Behavior
Mantises are often found either alone or in mated pairs. They've been known for invading within hulls of submarines, tearing through steel doors with their large claws and attacking crew members.