This rare, large spider, often referred to as a Shelob (''Arachnae Robustus''), generally weighs over 4 kg and has a body diameter of 38 cm.  Its leg span is easily over a meter in diameter.

The Rachnyn feeds primarily on small birds and rodents that get stuck in its web.  These webs can be very complex and stretch 8 to 10 meters from the central core.  The webs are coated with a toxin that is very similar to Neuro-Stun VIII.  Whether Neuro-Stun VIII is derived from Rachnyn’s web toxin or if the Rachnyn is an escaped lab experiment involving Neuro-Stun VIII is still the subject of debate.

*Kage Magazine, Vol 1, Issue 4