Choanostoma
Protozoa | Ciliophora | Echiura | Haptorida | Didiniidae | Choanostoma
Choanostoma
Wang, 1931
Eukaryota | Chromista | Harosa | Alveolata | Ciliophora | Gymnostomatea | Haptorida | Didiniidae | Choanostoma
COL:CS5HF | COL:C | COL:D3MRQ | COL:LL9PN | COL:3H | COL:C6 | COL:3BK | COL:992 | COL:MKQ5Z
(Chatton, 1925) Whittaker & Margulis, 1978 |  |  | Cavalier-Smith |  |  | Corliss, 1974 | Poche, 1913 | Wang, 1931