| Isodiametra colorata (Ehlers & Doerjes, 1979) | November 1972 | sublittoral |  |  | 
| Myozona aerumnosa Sopott-Ehlers & Schmidt, 1974 | 1972-1973 | sublittoral |  |  | 
| Paramyozonaria riegeri Sopott-Ehlers & Schmidt, 1974 |  | sublittoral |  |  | 
| Avagina polyvacuola Ehlers & Doerjes, 1979 | November 1972 | sublittoral |  | Eulitoral and sublitoral | 
| Praeaphanostoma thalasophilum Ehlers & Doerjes, 1979 | November 1972 | sublittoral |  |  | 
| Praeaphanostoma vitreum Ehlers & Doerjes, 1979 | November 1972 | sublittoral |  |  | 
| Otocelis phycophilus Ehlers & Doerjes, 1979 | November 1972 | sublittoral |  |  | 
| Philocelis karlingi pacifica Ehlers & Doerjes, 1979 | November 1972 | sublittoral |  |  | 
| Exocelis exopenis Ehlers & Doerjes, 1979 | November 1972 | sublittoral |  | rare | 
| Philactinoposthia tenebrosa Ehlers & Doerjes, 1979 | November 1972 | sublittoral |  |  | 
| Paractinoposthia pseudovesicula (Ehlers & Doerjes, 1979) | November 1972 | sublittoral |  |  | 
| Wydula simplex Ehlers & Ehlers, 1981 | November 1972 | sublittoral |  | upper sublitoral, 30-40 cm  at low tide, in algal growths | 
| Neokytorhynchus pacificus Ehlers & Ehlers, 1981 | November 1972 | sublittoral |  |  | 
| Promesostoma sartagine Ax & Ehlers, 1973 | September 1972 | sublittoral |  | in coarse sand of sublitoral, 0,5 m water depth at low tide, 2 specimens. | 
| Duplominona galapagoensis Ax & Ax, 1977 | September 1972 | sublittoral |  | sublitoral coral sand. | 
| Duplominona karlingi Ax & Ax, 1977 | August-September 1972 | sublittoral |  | sublitoral, coral sand. | 
| Duplominona krameri Ax & Ax, 1977 | September 1972 | sublittoral |  |  | 
| Parotoplana turgida Ax & Ax, 1974 | September 1972 | sublittoral |  | in the lower beach about 2 meters deep, below the low tide line. | 
| Phonorhynchoides haegheni Artois & Schockaert, 2001 | 1972-1973 |  |  |  | 
| Macrostomum astericis Schmidt & Sopott-Ehlers, 1976 | 1976 or earlier |  |  |  |