| Nominal Species (n = 46) | Present allocation (n = 46) | Ref. |
|---|---|---|
| Cryptotrochus aequus Kitahara & Cairns, 2021 | Cryptotrochus aequus | 3477 |
| Idiotrochus alatus Cairns, 2004 | Idiotrochus alatus | 3477 |
| Sphenotrochus andrewianus Milne-Edwards & Haime, 1848 | Sphenotrochus andrewianus | 19 |
| Sphenotrochus aurantiacus von Marenzeller, 1904 | Sphenotrochus aurantiacus | 19 |
| Sphenotrochus auritus Pourtalès, 1874 | Sphenotrochus auritus | 19 |
| Cryptotrochus brevipalus Cairns, 1999 | Cryptotrochus brevipalus | 19 |
| Cryptotrochus carolinensis Cairns, 1988 | Cryptotrochus carolinensis | 19 |
| Holcotrochus crenulatus Dennant, 1904 | Holcotrochus crenulatus | 19 |
| Sphenotrochus cuneolus Cairns, 2004 | Sphenotrochus cuneolus | 3477 |
| Lissotrochus curvatus Cairns, 2004 | Lissotrochus curvatus | 3477 |
| Peponocyathus dawsoni Cairns, 1995 | Peponocyathus dawsoni | 19 |
| Platytrochus distichus Kitahara & Cairns, 2021 | Platytrochus distichus | 3477 |
| Idiotrochus emarciatus Duncan, 1865 | Idiotrochus emarciatus | 19 |
| Sphenotrochus evexicostatus Cairns, 1993 | Sphenotrochus evexicostatus | 19 |
| Sphenotrochus excavatus Tenison Woods, 1878 | Sphenotrochus excavatus | 19 |
| Conocyathus formosus Cairns, 2004 | Conocyathus formosus | 3477 |
| Sphenotrochus gardineri Squires, 1961 | Sphenotrochus gardineri | 19 |
| Sphenotrochus gilchristi Gardiner, 1904 | Sphenotrochus gilchristi | 19 |
| Conocyathus gracilis Cairns, 1998 | Conocyathus gracilis | 19 |
| Sphenotrochus hancocki Durham & Barnard, 1952 | Sphenotrochus hancocki | 19 |
| Platytrochus hastatus Dennant, 1902 | Platytrochus hastatus | 19 |
| Trematotrochus hedleyi Dennant, 1906 | Trematotrochus hedleyi | 19 |
| Cyathotrochus herdmani Bourne, 1905 | Cyathotrochus herdmani | 19 |
| Sphenotrochus imbricaticostatus Cairns, 1993 | Sphenotrochus imbricaticostatus | 19 |
| Cryptotrochus javanus Cairns, 1988 | Cryptotrochus javanus | 19 |
| Tropidocyathus labidus Cairns & Zibrowius, 1997 | Tropidocyathus labidus | 3477 |
| Platytrochus laevigatus Cairns & Parker, 1992 | Platytrochus laevigatus | 19 |
| Endocyathopora laticostata Cairns, 1989 | Endocyathopora laticostata | 19 |
| Sphenotrochus lindstroemi Cairns, 2000 | Sphenotrochus lindstroemi | 19 |
| Foveolocyathus maestratii Kitahara & Cairns, 2021 | Foveolocyathus maestratii | 3477 |
| Thrypticotrochus multilobatus Cairns, 1989 | Thrypticotrochus multilobatus | 19 |
| Thrypticotrochus odonthercus Kitahara & Cairns, 2021 | Thrypticotrochus odonthercus | 3477 |
| Peponocyathus orientalis Yabe & Eguchi, 1932 | Peponocyathus folliculus | 3477 |
| Cryptotrochus palacrotenes Kitahara & Cairns, 2021 | Cryptotrochus palacrotenes | 3477 |
| Dunocyathus parasiticus Tenison Woods, 1878 | Dunocyathus parasiticus | 19 |
| Platytrochus parisepta Cairns & Parker, 1992 | Platytrochus parisepta | 19 |
| Foveolocyathus parkeri Cairns, 2004 | Foveolocyathus parkeri | 3477 |
| Sphenotrochus ralphae Squires, 1964 | Sphenotrochus ralphae | 19 |
| Holcotrochus scriptus Dennant, 1902 | Holcotrochus scriptus | 19 |
| Deltocyathoides sentus Kitahara & Cairns, 2021 | Deltocyathoides sentus | 3477 |
| Sphenotrochus squiresi Cairns, 1995 | Sphenotrochus squiresi | 19 |
| Idiotrochus strongylus Kitahara & Cairns, 2021 | Idiotrochus strongylus | 3477 |
| Kionotrochus suteri Dennant, 1906 | Kionotrochus suteri | 19 |
| Dunocyathus wallaceae Cairns, 2004 | Dunocyathus wallaceae | 3477 |
| Conocyathus zelandiae Duncan, 1876 | Conocyathus zelandiae | 19 |
| Pleotrochus zibrowii Cairns, 1997 | Pleotrochus zibrowii | 19 |