Very well, let me see...
Aventi - Literally, just use the Triton in Volo's Guide. That's all they are, Tritons with a theme of being post-humans instead of stranded elemental-kin.
Azurin... with no mechanical conversion of Incarnum, there's not really a lot you can do with these guys. They're humans with a distinctive look and a free Incarnum point. There's nothing to do with that.
Bullywugs - Will Grippli do for this? I have a Grippli racial profile already.
Darfellans - I got these written up in the doc.
Deep Imaskari - Need to double-check Forgotten Realms' Underdark from 3e, but I think I can make something out of this.
Dromites/Elan/Blue Goblins - I really got no ide what to do with these when we have slag-all in the way of psionics rules.
Hag-Spawn - Do you mean the pseudo-Oni from Faerun's Unapproachable East, or PF's hag-bred witch-women? Because I have an Oni and PF Changelings ("Haglings") both already written. If you want to be really accurate to the actual 3.5 stats, why can't you reskin a Goliath? They are pretty much the same, off the top of my head.
Half-Giants - What defines these from Goliaths?
Ibixians - Can convert.
Irda - Have them in the doc already.
Karsite - Can write.
Maenad - These are the "Wilder match race" from the Psionics books of 3.5, right?
Necropolitans - Do you want these guys to be a template or an actual race?
Raptorans - How do these guys differ from the Aarakocra in the Elemental Evil Player's Guide?
Sea-Kin - I need to know where these come from.
Shifters - There's an Eberron Update on WoTC's site with these guys already. They're kind of crap, but I don't really have any better ideas.
Spellscale - Got a draft of these in the doc, but want to rework them.
Xeph - Where are these from?
Uldra - Will give them a shot.
Underfolk - Where are these guys from, and how do they differ to Deep Imaskari?