Simpea or Simpai: How To spell?

The word Simpea is misspelled against Simpai, a noun meaning "A long-tailed monkey (Semnopitchecus melalophus) native of Sumatra. It has a crest of black hair. The forehead and cheeks are fawn color, the upper parts tawny and red, the under parts white. Called also black-crested monkey, and sinpae."