From publisher blurb:
Psionic creatures come in all shapes and sizes, as shown by this latest release in the Psionic Bestiary product line. The dredge and mind-numb swarm offer a psionic ooze and psionic swarm.
Unlike most oozes, the dredge has a level of sentience from its psionic nature, leaping at targets from far away and dissolving with its touch, while the mind-numb swarm is the physical embodiment of random thoughts, deafening nearby creatures with thousands of thoughts all turned into a cacophony of noises.
In 2011, Dreamscarred Press held a contest for a psionic bestiary. The monsters from that contest are being released in a series of releases and will ultimately be compiled into a single psionic bestiary book.