Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Typhlocypris trigonella -  Typhlocypris trigonella is a species of ostracod crustacean in the family Candonidae. It is endemic to Slovenia where it is known only from Postojna Cave.
The answer to this question is:
Animal