Dodatak:Popis praživotinja, J
Ja uredi
- Jakoba D.J.Patterson, 1990
- Jakobea
- Jakobida
- Jakobidae
- Janickia
- Janickiella Duboscq & Grassé
- Janickina Chatton
Je uredi
Jeppsia (Jepps, 1937) Corliss, 1960 uredi
- Jeppsia calani (Jepps, 1937) Corliss, 1960
Protozoa → Ciliophora → Kinetofragminophora → Apostomatida → Foettingeriidae
Jo uredi
- Jodomonas Penso, 1932
- Joenia Grassi
- Joenina Grassi
- Joenopsis Cutler
- Jolya Skvortzov & Noda