gar-lock pl. garlocs
It's built like a terran alligator, but it has grown a thick exoskeleton. Its hind legs have evolved into small, spiked fins, while the front legs has grown into big, clawed hands.
This insectoid has a tendency to pick up the remains of dead creatures and using them as weapons and amour.
(Most likely Ramath-lehi's biggest bug-like thing.)