1. Vronkali (green elf, associated with coniferous forests.)
2. Voralans (black elf, associated with funguses and slime moulds.)
3. Slorifings (red elf, associated with ferns and spore-bearing plants.)
4. Murthoi (blue elf, which live in the ocean tending forests of kelp.)

spoilers: two of these are females and two of them are males, have fun trying to figure out which one is male and which one is female.