Slime Behemoth

Slime Behemoths live up to their namesake, their sheer size dwarfs many of the universes naturally occurring inhabitants. Semi-sentient slime, with the intent on digesting and growing itself so that it may divide and continue the cycle anew. This creature spews slime blocks from its underside, coating the ground in small pieces of itself. Due to this loss of mass, the Slime Behemoth must aggressively seek out new prey to devour and incorporate into its mass. This effort is to sustain itself. A Slime Behemoth is not picky about its food source, preying upon any type of organic compound, devouring plantilfe, and any within. Able to use it's sticky tendrils much like an octopus to grapple prey and drag it into it's body for dissolving. Upon reaching a sizable mass, the Slime Behemoth begins to divide itself, creating an exact copy, albeit slightly smaller, ready to begin itself own journey for food and division. Due to this creatures lack of need for air, there have been cases of entire eco-systems being wiped clean of organic matter, only to have a swarm of massive Gelatinous Behemoths float toward a new planet in the system.

As a less evolved form of the Gelatinous Behemoth, the Slime Behemoth has yet to gain the ability to spawn allies until the main host is in the most dire need for assistance. The only attack possessed by these more docile creatures, is spewing chunks of slime that coat anything within an area causing the "slimed" debuff. Less aggressive, the Slime Behemoth needs less nutrition to sustain itself, thus do not often grow to such enormous sizes, and upon doing so, often do not last long.

Slime Behemoth is a unique monster found on Gelatinous worlds.

Luna's Lab Notes
~ If one needs to farm slime blocks, this creature is a wonderful means to do this. They spawn massive amounts of the material.

~ The Slime Behemoth is composed of two primary monsterparts. ~ Not to be confused with the Gelatinous Behemoth, or Alien Queen Minion
 * Head - this is the shifting, ever watching eye located in the center of the mass. This creatures spawns the floating eyes as a defensive measure.
 * Body - the primary mass of the creature, and what shoots the jelly blocks and summons Eyejellyrollers

Source: 

https://github.com/sayterdarkwynd/FrackinUniverse/tree/master/monsters/flyers/eyejellies/eyeslimeking