Races of the Source vs the First and those unique to each

[DaBigDorf]

On both that we know of:

Hyur/Humes
Elezen/Elves
Lalafell/Dwarves
Roegadyn/Galdjent
Miqo'te/Mystel
Hrothgar/Ronso
Viera/Viis
Kobolds/Mord
Amal'jaa/??? (i forget the name, the only time you see them is the Crystarium where they are raising the Amaro)
Sahagin/Ondo
Moogles

Source only:

Sylphs
Ixal
Garleans
Lupin
Namazu
Kojin
Ananta
Qiqirn
Mamool Ja

First only:

Pixies
Nu Mou
Fuath

interesting that the Fae Folk appear to be unique to the First

questionable: Are the Hobgoblins of the First what Goblins of the source would look like without their masks? (my guess is yes as the Hobgoblins look like the classic FF enemy "Goblin")

[MrThinker]

/snip
Source only:

Sylphs
Ixal
Garleans
Lupin
Namazu
Kojin
Ananta
Qiqirn
Mamool Ja
/snip

Through a quest (main or side I dont remember) in Rak'tika, we actually know that namazu did indeed live on the First. The image of one is found on a ronkan coin that we find. That they can't be found simply points to them becoming extinct in the wake of the Flood.

Also the Amal'jaa equivalent are called the Zun.

[Nalien]

Source only:

Namazu

As I recall, there was a carving of a Namazu in one of the Rak'tika quests, implying they were at least around during the days of the Ronkan Empire. They were simply wiped out by the present.

interesting that the Fae Folk appear to be unique to the First

Likewise, it would seem Fae did exist on the Source at one point, given Bismarck is a Fae on the First, and a creature of mythology for the Vanu Vanu (who are also Source only, along with the Gnath), implying he at one point existed on the Source to inspire that mythology. The Sea of Clouds possibly being the result of something similar to what we saw him do in Tempest.

EDIT: Perhaps also worth noting, there doesn't seem to be a Sea of Clouds or Churning Mists on the First, Sohm Al is entirely absent despite being fairly inland from the Flood. Entirely possible they fell during the Flood of course, but to me that does raise questions regarding the idea that the Floating Continent existed since before the First Calamity, and was subsequently broken up by Calamities. The Norvrandt map has roads, bridges even, leading towards what would be Idyllshire, so it's not like that region wasn't explored in their history, and I think a floating mountain would draw attention, more so with there being no Dragons guarding it on the First. The only floating islands we do see on the First are "man" made (Vauthry raising Mt Gulg) and, interestingly enough, Pixie related with Lyhe Mheg, implying that Pixies do have a habit for making floating islands, perhaps lending some weight to the idea that Bismarck (also a Fae) created the Sea of Clouds?

[JeanneOrnitier]

It's possible that fae still exist on the Source somewhere since there's at least three continents we have yet to explore; at the bare minimum Bismarck is/was around to inspire his primal version that the Vanu Vanu worship. But on the other hand it's pretty safe to say the Source's races missing on the First are extinct or never existed at all, since we've been pretty much everywhere that isn't the Empty.

[ObsidianFire]

I think too much of the 1st Shard has been destroyed to say if the races we don't see on the 1st Shard weren't actually there at some point in time. Other then races like the Ixal (which are Allagan creations) it's entirely possible they migrated to different parts of the 1st Shard and were simply swallowed up by the Flood.

We've already seen that Roegayden and Au Ra are in the location of Corethas (instead of Elezen), while the Kobald and Lalafel swapped places. There's also primarily Viera in the place the Black Shroud is instead of Elezen. And the Elezen were in the 1st Shard's verions of Mor Dhona. So there's already a precedent for different races settling in different locations on the 1st Shard compared to the Source.

[Erendis]

So Moogles are the only race that got same name on the Source and the First? Does this mean anything?

[DamianFatale]

It's possible that fae still exist on the Source somewhere since there's at least three continents we have yet to explore; at the bare minimum Bismarck is/was around to inspire his primal version that the Vanu Vanu worship. But on the other hand it's pretty safe to say the Source's races missing on the First are extinct or never existed at all, since we've been pretty much everywhere that isn't the Empty.

There is an item obtained on the source called pixie earrings. I think they are a hint at fae being on the source.

[LineageRazor]

Just as a theory...

It's possible that the First's balance favoring Light (even BEFORE the Ascians started messing around) could be why Pixies and Fuath form there, and do not on the first. Perhaps the heavy Light aspect causes Aether to flow more sluggishly there. Upon death, rather than quickly being absorbed into the Lifestream, the souls of children and drowned linger for a bit, giving them a chance to reform into new forms before dispersing.

That doesn't really explain why OTHER souls don't also linger and reform. Perhaps they do, and we just haven't encountered the sort of creatures that are thus produced.

[Mansion]

So Moogles are the only race that got same name on the Source and the First? Does this mean anything?

They are even older than the Ascians. They are the true cosmogony.

[NessaWyvern]

They are even older than the Ascians. They are the true cosmogony.

If you go by another Final Fantasy game, moogles exist in the rift between worlds, so perhaps they came from the rift after the worlds were separated.