The jellies are a monster class represented by the glyph j.
Additional jellies were added in SLASH'EM.
Jelly also refers to the grouping of body parts for the forms of jellies and jellyfish. It affects the messages referring to the appropriate body parts as follows:
|Arm||Pseudopod (tentacle for jellyfish)|
|Finger||Pseudopod extension (tentacle for jellyfish)|
|Foot||Pseudopod root (tentacle for jellyfish)|
|Hand||Grasp (tentacle for jellyfish)|
|Toe||Pseudopod extremity (tentacle for jellyfish)|