There were a couple of Elder Scrolls mods in the history of DF. The old Dwemer Fortress mod was great but is now outdated; the more recent one had, frankly, half-assed creatures, and some other design choices I don't agree with. I've decided to add my own version to my ever-expanding list of projects.
So far I've been working on guars:
-Guar - a bipedal reptile commonly used as a mount and pack animal. Comes in many colors from Albino White to Akaviri Potentate Black, with various other in between. Wild ones, while not actively predatory, should fight back when threatened.
-Tiger guar - a rare species from savage areas. It is aggressive and predatory, also larger than common guars. Can be trained, if one can get their hands on one of those elusive beasts.
-Circus guar - Bal Foyen circus guar differs from common guars exclusively in coloration. As a breed created through selective breeding, it des not appear in the wild. I may restrict it to Argonians.
-Skyfire guar - a vibrantly colored wild guar from tropical wetlands. It is slightly smaller than common guars, and prefers to run away rather than fighting.
-Frostbane guar - native to southern Skyrim, this furry guar is magically warded from cold. It can be encountered in temperate forests and taigas. I may make it a pet to nords and atmorans.
-Valorous guar - a spirit of a brave guar that returned from Sovngarde in flesh. It is fearless and fights fiercely like a tiger guar, although it won't go out of its way to harm others. It is also immune to curses, necromantic magic, and the effects of cold. Appears in good mountain.
-Pony guar - a small breed of guar bred for companionship. It is useful for vermin control, but due to its size, it can't carry goods. Doesn't appear in the wilds. I may restrict it to Dunmer and Chimer.
-Alit - a voracious cousin of guars, eating anything that can fit in its huge, toad-like, toooth-filled maw, and that includes unwary travellers.
-Kagouti - a huge reptile with tusks, horns, and a frill. It is an extremely dangerous predator that hunts alone or in small packs in a variett of environments. Hunting kagouti for their horns and ivory should be done by skilled warriors.
This is by no means a complete list of guars, as I haven't made construct, flora, and atronach forms, or wormmouths and guar-lizards.
I sorta have an idea what to do with kwama: foragers and workers are genderless, underdeveloped forms; workers can be milked for scrib jelly, that is a partially digested fungus rather than crushed scribs, and can be made into scuttle by cheesemakers. Kwama warriors are fully-formed males, while queens are breeding females. Babies of all castes are called scribs, although they will have the body plans of adults, as DF doesn't support metamorphosis.