Go ahead and add some. I am finally finished with finals, so I will begin to add some creatures from Ral and Guthay as I can. Ideas:
Shipboard: Rhulisti, Biodroid, Bioreplica, Symbiomech
Athas: Kreen, Trin, Gith, Lask, Human, Athasian Elf, Athasian Dwarf, Athasian Goblin (Needs Stats), Athasian Pixie (Needs Stats), Athasian Gnome (Needs Stats), Kenku, Aarkrocka
Ral: Dromites, Psurlons, Elder Psurlons, Giant Psurlons, Tsochari, Abeil
Guthay: Shambling Mound, Udoroot, Black Pudding, Diopsid, Silk Wyrm, Silthilar, Myconid, Guthay Fungus
Outer Realms: Mozgriken (Rhulisti based illithid), Neothelid, Ustigilator, Intellect Devourer, Embrac, Kigrid, Saltor, Roper, Urophion, Illithid Larva, Cesserid, Umber Hulk, Truly Horrid Umber Hulk, Neogi, Neogi Spawn, Great Old Master, Flumph, Grell Hatching, Grell, Grell Philosopher, Grell Patriarch
I am open to suggestions