| Scientific Name | Author | English Name |
|---|---|---|
| Bythocellata cruciformis | Nair, 1951 | |
| Bythotiara capensis | Pagès, Bouillon & Gili, 1991 | |
| Bythotiara huntsmani | (Fraser, 1911) | Tunicate siphon hydroid |
| Bythotiara metschnikovii | Bouillon, Boero & Seghers, 1988 | |
| Bythotiara murrayi | Gunther, 1903 | |
| Calycopsis bigelowi | Vanhöffen, 1911 | |
| Calycopsis birulai | unspecified | |
| Calycopsis borchgrevinki | (Browne, 1910) | |
| Calycopsis chuni | Vanhoeffen, 1911 | |
| Calycopsis gara | Petersen, 1957 | |
| Calycopsis krampi | Petersen, 1957 | |
| Calycopsis lipi | van der Spoel & Bleeker, 1988 | |
| Calycopsis nematophora | Mertens, 1933 | |
| Calycopsis papillata | Bigelow, 1918 | |
| Calycopsis simplex | Kramp & Damas, 1925 | |
| Calycopsis simulans | (Bigelow, 1909) | |
| Calycopsis typa | Fewkes, 1882 | |
| Eumedusa birulai | (Linko, 1913) | |
| Heterotiara anonyma | Maas, 1905 | |
| Kanaka pelagica | Uchida, 1947 | |
| Protiaropsis minor | (Vanhoeffen, 1911) | |
| Pseudotiara tropica | (Bigelow, 1912) | |
| Sibogita geometrica | Maas, 1905 |