Open- You can make a character in the species however you may need to ask for reference data until I actually post ref data.
SemiOpen- You can make a character but you need to ask due to species having things only for that species and I need to see if your character stays true to the species story.
Semiclosed- Closed but you can make a character if you ask and put a good backstory as to why that character is really there. Many Semiclosed have a superspecific factional standing.
Closed- These species are closed from making characters however on rare occasions someone may be able to make a character for said species for certain occasions, afterwards it is their character and they can keep it. But like I said, very rare occasions.
Severely Closed- You may not make a character from this species, they are usually deemed as a highly dangerous and unfriendly species. This is a rare classification.
Restricted- Only I can make a character in this species indefinitely.

Predark Characterization- The 3 Predark species are Dust, Ancestor and Void Walker. The Ancestors are the oldest species known to any reality, Void Walkers are the strongest of the 3 while Dust are the most expansive, able to reproduce by possession of literally anything. Predark means that they have existed even before darkness existed, before creation came into play. Although Biligerents are also from Predark, they were created by the Ancestors as protectors of the species and go by the common universal name of Sakura Armors. Only one is known to currently exist at its full power as of now and that is the Darkgod Arcanus. Due too this, Biligerents aren't considered predark even tho they were made predark.

Divine characterization- Divine doesn't nessesarily mean god in Reality now since there are so many actual gods. This title means these beings possess powers that easily rival that of gods plus they are numerous enough to be viewed as a actual species. The Voidwalker Predark species also sorta fall under this category.

High Divine- High Divine is what gods in Existence are called now in this age of Ultimates. Extremely powerful and most near immortals.

Highest Divine- Highest Divines are beings that are so powerful that they shouldn't even exist yet they exist anyway. Power so limitless that they deny the laws of creation itself. They are far higher then gods and anything below Highest Divine can't even think to defeat them. Blackwolves, Prime Masters, Neongods and Void Alliance Members are all Highest Divines.

Note: Not all species are furries. Also please refer to the list of Planets to learn what species exists on which planet if you would do so kindly. Just because a species comes from a planet doesn't mean your character has to live on that planet. The Unison supports free movement. Also if you do want to make a character, i would love to hear about it. I like it when people make characters from Serendipity species. Thanks.

Mostly Sentient and Sentient(Constantly updating):
Human(Mammal)(Obviously an Open Species)(Finished)
Fairak(Reptilian)(Open)(Finished)
Techlorian(Reptilian)(Open)(Finished)
Dust(Carbon Based)(SemiOpen)(Predark)(Finished)
Liberator(Mechanical)(SemiOpen)
Crystallite(Carbon based)(SemiOpen)(Finished)
Ikros(Reptilian Cybernetic)(Closed)(Finished)
Tyrannicon(Mechanical)(Closed)(Finished)
Furry(Various Biological)(Again.... Obviously open)
Jakaal(Furrylike Various Biological)(Open)
Undead(Various)(Open)
Metallican(Mechanical)(Closed)
Arcurian(Humanlike Mammal)(Open)
Charite(Mammal Cybernetic)(Closed)(Finished)
Furonas(Humanlike fox Mammal)(Open)(Finished)
Calderan(Furrylike Lupine Canine Mammal Various)(Open)
Yanu(Amphibian)(Closed)
Trak(Reptilian)(Open)(Finished)
Mongr(Primate)(Closed)(Finished)
Grel(Amphibian Cybernetic)(Closed)(Finished)
Psion(Mollusk)(SemiOpen)(Finished)
Salven(Reptilian)(Open)(Finished)
Droid(Mechanical)(Open)
Servitor(Mechanical)(Semiclosed)
Angel(Humanlike Mammal)(Open)
Angeloid(Humanlike Mammal Synthetic)(Open)
Demonoid(Synthetic Various)(Restricted)(Divine)
Zed(Biological)(closed)
Synthetic A.I(Synthetic)(Closed)
Android A.I(Mammal Synthetic)(Open)
Systematic A.I(Mechanical)(Closed)
Control A.I(Mechanical)(Closed)
Serendipity A.I(Synthetic Unknown)(Semiopen)(Finished)
Void Walker(Biological)(Restricted)(Predark)(Finished)
Ancestor(Carbon based)(Semiclosed)(Predark)(Finished)
Golem(Carbon based various)(Open)
Tyton(Biological)(Open)
Veperus(Reptilian)(Semiopen)(Finished)
Ugor(Reptilian)(Open)
Draconiquis(Draconic Reptilian)(Open)
Machindrent(Mechanical)(Closed)
High Droid(Mechanical)(Semiclosed)(not to be confused for the other Droids)(Finished)
Equestrian(Equine)(Open)
Dark Follower(Humanlike Biological)(Open)(Finished)
Neku(Humanlike Cat Mammal)(Open)(Finished)
Dracolisk(Humanlike Draconic Reptilian)(Open)(Finished)
Dragonoid(Draconic Reptilian Synthetic)(Open)
Dragon(Draconic Reptilian)(Everyone has a dragon character at least somewhere xD so obviously open)
Draconic(Draconic Reptilian)(Open)
Living Armor(Carbon Based Various)(SemiOpen)
Darkgod(Various)(Restricted)(High Divine)
Leisean(Humanlike Mammal)(Open)(Finished)
Reaper(Various Biological)(Semiclosed)(Divine)
Arid Succubus(Humanlike Mammal Various)(Open)(Finished)
Beta Elf(Humanlike Mammal)(Open)(Finished)
Peruun Elf(Humanlike Mammal)(Open)(Finished)
Nicer(Humanlike Mammal)(Open)(Finished)
Omris(Mammal)(Closed)(Finished)
Vokus(Humanlike Mammal)(Open)(Finished)
Octoselvent(Mollusk)(Semiclosed)
Varax(Mollusk)(SemiOpen)
Bolarg(Reptilian)(Semiclosed)(Finished)
Anton(Reptilian)(Open)(Finished)
Twisted(Unknown)(Severely Closed)
Sib(Arachnid)(Open)
Pala Garr(Mollusk)(SemiOpen)(Finished)
Aurorex(Humanlike Draconic Reptilian)(Open)(Finished)
Skullbot(Mechanical Cybernetic)(Semiclosed)
Hapani(Reptilian)(SemiOpen)
Arcadian(Mammal)(Open)(Finished)
Lex(insectoid)(Open)
Vaq'ua(Reptilian)(Open)
Eridok(Human sized single cell Organism, Further study needed)(SemiOpen)(Finished)
Calidam(Furrylike Cat Mammal)(Open)(Finished)
Kaatasian(Amphibian Cybernetic)(Open)(Finished)
Biligerent(Carbon Based)(Closed)(High Divine)(Finished)
DL-Lan(Energy Based)(Semiopen)(Finished)
Cane(Rhinolike Mammal)(Open)(Finished)
Genus(Microorganism Colony)(Semiopen)(Finished)
Tel(Insectoid)(Semiopen)(Finished)
Shundari(Undead)(Semiopen)
Stargod(Unknown)(Closed)(Divine)
Prime Master(Various)(Only 11)(restricted)(Highest Divine)
Neongod(Various)(Restricted)(Highest Divine)
Blackwolf(Various)(Restricted)(Highest Divine)
Dire Orc(Mammal)(Open)(Finished)
Rathar(Mammal)(Open)
Seeker(Gas Based)(Semiclosed)(Divine)
Ka'Pa'Tu(Reptilian)(Semiopen)
Great Chameleon(Reptilian)(Closed for now)
Trog(Biological Various)(Open)
Yulet(Mammal)(Open)(Finished)
Orbiter(Mechanical Unknown)(Closed)
Java Mo(Plant)(Semiopen)(Finished)
Shackkral(Ray-finned Fishkin)(Open)
Racclaw(Crustacean)(Semiopen)
Chochi(Chondrichthyes-Shark)(Open)(Finished)
Galatian(Jade based?)(Closed)(Finished)
Mystil(Amphibian)(Closed)
Catalyst(Unknown)(Closed)
Sand Kappa(Amphibian)(Semiopen)
Arkulan(Human Variant Mammal)(Open)(Finished)
Dark Calidam(Furrylike Cat Mammal)(Semiclosed)(Finished)
Okar(Mechanical)(Closed)
Dark Charite(Mammal Cybernetic)(Semiclosed)
Force-Sensitive Fairak(Reptilian)(Semiclosed)
Altered Seeker(Gas based)(Semiclosed)(Divine)
Mechalid(Mechanical)(Semiclosed)(Finished)
Metalhead Sprinter(Hybrid)(Semiopen)(Finished)
Fallen(Carbon based)(Semiclosed)
Metalhead Strider(Hybrid)(Semiopen)(Finished)
Shard(Mechanical?)(Semiclosed)
Shattered(Carbon based)(Semiclosed)
Jabberwok Dreamer(Reptilian)(Semiclosed)
Imperial(Mammal)(Open)(Finished)
Silman Droid(Machine)(Restricted)
Blackscale Anton(Reptilian) Semiopen)
Gargoyle Rockfiend(Reptilian)(Semiopen)
Heshmen(Humanlike Mammal Unknown)(Closed)
Nisk(Demonic Reptilian)(Semiopen)
Tibernan(Mammal Reptile Hybrid)(Semiopen)
Chargibis(Reptilian)(Semiopen)
Shadowis(Mammal Demonic)(Semiclosed)(Infinitos)
Alphashadow(Demonic Undead)(Semiclosed)
Shadowmonger(Undead)(Closed)
Silman(Unknown)(Restricted)
Hyperdeveloped Xenobite(Reptilian hybrid)(Semiclosed)
Ash Panther
Tuon
Mediator
Depellion(Infinitos)
Zatarin(Infinitos)
Axelion(Infinitos)
Golden Lizard
Valkariyan
Lithlean
Cassadian
Corruptor
Gorgonite
Sargoyle
Ka-Peri
Lasariean(Infinitos)

The 4 Beyonds that are beyond thats beyond the beyond that transcends anything that you can think of.
Ar'a- The Bringers of the Start
Teres'a- The Holders of Continuing
Nullelivent- The Miasma that surrounds the rest
Vi'ska- The Bringers of the End