| Nominal Species (n = 66) | Present allocation (n = 66) | Ref. |
|---|---|---|
| Botryllophilus abbotti Ooishi & Illg, 1989 | Botryllophilus abbotti | 19 |
| Haplostoma albicatum Ooishi & Illg, 1977 | Haplostoma albicatum | 19 |
| Haplostoma ambiguum Ooishi & Illg, 1977 | Haplostoma ambiguum | 19 |
| Botryllophilus angustus Kim & Boxshall, 2021 | Botryllophilus angustus | 3477 |
| Botryllophilus antarcticus Kim & Boxshall, 2021 | Botryllophilus antarcticus | 3477 |
| Haplosaccus ardius Kim & Boxshall, 2021 | Haplosaccus ardius | 3477 |
| Haplostomides bellus Ooishi & Illg, 1977 | Haplostomides bellus | 19 |
| Botryllophilus bermudensis Kim & Boxshall, 2021 | Botryllophilus bermudensis | 3477 |
| Haplostomides bermudensis Kim & Boxshall, 2021 | Haplostomides bermudensis | 3477 |
| Haplostomella bilobata Kim & Boxshall, 2021 | Haplostomella bilobata | 3477 |
| Haplostomella binodosa Kim & Boxshall, 2021 | Haplostomella binodosa | 3477 |
| Haplostomella biseta Kim & Boxshall, 2021 | Haplostomella biseta | 3477 |
| Schizoproctus bisetatus Kim & Boxshall, 2021 | Schizoproctus bisetatus | 3477 |
| Haplostomella borealis Marchenkov & Boxshall, 2003 | Haplostomella borealis | 3477 |
| Botryllophilus coniorhynchus Kim & Boxshall, 2021 | Botryllophilus coniorhynchus | 3477 |
| Haplostomella crassa Kim & Boxshall, 2021 | Haplostomella crassa | 3477 |
| Botryllophilus curtipes Kim & Boxshall, 2021 | Botryllophilus curtipes | 3477 |
| Haplostoma dentatum Ooishi & Illg, 1977 | Haplostoma dentatum | 19 |
| Botryllophilus dentirostris Kim & Boxshall, 2021 | Botryllophilus dentirostris | 3477 |
| Haplostoma depressum Kim & Boxshall, 2021 | Haplostoma depressum | 3477 |
| Haplostomella distincta Ooishi & Illg, 1977 | Haplostomella distincta | 19 |
| Haplostomella dubia Ooishi & Illg, 1977 | Haplostomella dubia | 19 |
| Haplostoma dudleyae Ooishi, 1998 | Haplostoma dudleyae | 19 |
| Haplostoma elegans Ooishi & Illg, 1977 | Haplostoma elegans | 19 |
| Haplosaccus elongatus Ooishi & Illg, 1977 | Haplosaccus elongatus | 19 |
| Schizoproctus fijiensis Kim & Boxshall, 2021 | Schizoproctus fijiensis | 3477 |
| Schizoproctus frigidus Kim & Boxshall, 2021 | Schizoproctus frigidus | 3477 |
| Haplostoma fusiforme Kim & Boxshall, 2021 | Haplostoma fusiforme | 3477 |
| Schizoproctus fusiformis Kim & Boxshall, 2021 | Schizoproctus fusiformis | 3477 |
| Haplostoma gracile Kim & Boxshall, 2021 | Haplostoma gracile | 3477 |
| Botryllophilus guadeloupensis Kim & Boxshall, 2021 | Botryllophilus guadeloupensis | 3477 |
| Haplostomides hawaiiensis Ooishi, 1994 | Haplostomides hawaiiensis | 19 |
| Botryllophilus inaequipes Hansen, 1923 | Botryllophilus inaequipes | 19 |
| Schizoproctus inflatus Aurivillius, 1885 | Schizoproctus inflatus | 19 |
| Haplostoma laticaudatum Kim & Boxshall, 2021 | Haplostoma laticaudatum | 3477 |
| Botryllophilus longicaudatus Kim & Boxshall, 2021 | Botryllophilus longicaudatus | 3477 |
| Botryllophilus longipes Kim & Boxshall, 2021 | Botryllophilus longipes | 3477 |
| Haplostomides luteolus Ooishi & Illg, 1977 | Haplostomides luteolus | 19 |
| Schizoproctus magnus Kim & Boxshall, 2021 | Schizoproctus magnus | 3477 |
| Haplostoma mammiferum Kim & Boxshall, 2021 | Haplostoma mammiferum | 3477 |
| Haplostoma manadoense Kim & Boxshall, 2021 | Haplostoma manadoense | 3477 |
| Haplostoma minutum Ooishi & Illg, 1977 | Haplostoma minutum | 19 |
| Schizoproctus mollis Kim & Boxshall, 2021 | Schizoproctus mollis | 3477 |
| Haplostomella multinodosa Kim & Boxshall, 2021 | Haplostomella multinodosa | 3477 |
| Botryllophilus norvegicus Schellenberg, 1921 | Botryllophilus norvegicus | 19 |
| Botryllophilus nudisetatus Kim & Boxshall, 2021 | Botryllophilus nudisetatus | 3477 |
| Haplostomella oceanica Ooishi & Illg, 1977 | Haplostomella oceanica | 19 |
| Schizoproctus oligomerus Kim & Boxshall, 2021 | Schizoproctus oligomerus | 3477 |
| Haplostomella ooishiae Kim & Boxshall, 2021 | Haplostomella ooishiae | 3477 |
| Haplostomides partitus Kim & Boxshall, 2021 | Haplostomides partitus | 3477 |
| Botryllophilus pentachaetus Kim & Boxshall, 2021 | Botryllophilus pentachaetus | 3477 |
| Haplostoma pingue Kim & Boxshall, 2021 | Haplostoma pingue | 3477 |
| Schizoproctus pinguis Kim & Boxshall, 2021 | Schizoproctus pinguis | 3477 |
| Haplostoma pygmaeum Kim & Boxshall, 2021 | Haplostoma pygmaeum | 3477 |
| Haplostoma rectangulatum Kim & Boxshall, 2021 | Haplostoma rectangulatum | 3477 |
| Haplostomella reducta Ooishi & Illg, 1977 | Haplostomella reducta | 19 |
| Haplostomides sanamyani Marchenkov & Boxshall, 2003 | Haplostomides sanamyani | 3477 |
| Haplostoma setiferum Ooishi & Illg, 1977 | Haplostoma setiferum | 19 |
| Haplostomides similis Kim & Boxshall, 2021 | Haplostomides similis | 3477 |
| Haplostoma simplex Kim & Boxshall, 2021 | Haplostoma simplex | 3477 |
| Botryllophilus stenurosus Kim & Boxshall, 2021 | Botryllophilus stenurosus | 3477 |
| Haplostoma symbioticum Kim & Boxshall, 2021 | Haplostoma symbioticum | 3477 |
| Schizoproctus tripartitus Kim & Boxshall, 2021 | Schizoproctus tripartitus | 3477 |
| Botryllophilus tuberculatus Kim & Boxshall, 2021 | Botryllophilus tuberculatus | 3477 |
| Haplostomella uniseriata Kim & Boxshall, 2021 | Haplostomella uniseriata | 3477 |
| Haplostoma vanuatuense Kim & Boxshall, 2021 | Haplostoma vanuatuense | 3477 |