I have a list here of known Chinese Mythical creatures. I will add them accordingly in time. Feel free to fill them out yourselves as well. (Note this page will be edited once all the details have been put it)

• Bashe

Birds:

• Fenghuang

• Ji Guang
• Jian
  

• Jingwei
• Shang-Yang
  

• Nine-headed Bird

The nine-headed bird is one of the earliest forms of the Chinese Pheonix, worshiped by ancient natives in Hubei Province, which during the Warring State Period was part of the kingdom of Chu. Nine-headed bird was also called "Nine Phoenix" , which together with Chinese Dragon, were two the most vastly worshiped divine/mythical creatures throughout Chinese history.
The number "Nine" was thought to possess mysterious power in Chinese culture. Nine-headed bird was, and still is believed to be a symbol of wisdom and good fortune.

• Su Shuang

• Peng
• Qing Niao
• Zhu

Chinese dragons:

• Yinglong

• Dragon King

• Fucanglong

• Shenlong

• Dilong

• Tianlong

• Li (hornless dragon)
• Jiaolong

• Qilin
• Long Ma
• KuiKun
• Jiang Shi
• Luduan
• Yaoguai
• Huli jing
  
• Nian, the beast
• Ox heads & horse faces
• Pixiu
  
• Rui Shi
• Qīng Lóng
• Xuán Wǔ
• Bái Hǔ
• Zhū Què
• Tao Tie
  
• Xiao
• Xiezhi
• Xing Tian
  
• Chinese Monkey
• Yifan Zhang