| Nominal Species (n = 40) | Present allocation (n = 35) | Ref. |
|---|---|---|
| Processa australiensis Baker, 1907 | Processa australiensis | 81840 |
| Processa barnardi Hayashi, 1975 | Processa compacta | 3477 |
| Nikoides boraboraensis Burukovsky, 2002 | Nikoides boraboraensis | 3477 |
| Processa canaliculata Leach, 1815 | Processa canaliculata | 19 |
| Processa compacta Crosnier, 1971 | Processa compacta | 3477 |
| Nika couchi Bell, 1847 | Processa canaliculata | 75097 |
| Nikoides danae Paulson, 1875 | Nikoides danae | 19 |
| Processa demani Hayashi, 1975 | Processa demani | 3477 |
| Nika edulis Risso, 1816 | Processa edulis | 75097 |
| Hectarthropus expansus Bate, 1888 | Hectarthropus expansus | 81840 |
| Processa fimbriata Manning & Chace, 1971 | Processa fimbriata | 19 |
| Nikoides gurneyi Hayashi, 1975 | Nikoides gurneyi | 100230 |
| Processa guyanae Holthuis, 1959 | Processa guyanae | 19 |
| Processa hemphilli Manning & Chace, 1971 | Processa hemphilli | 19 |
| Processa macrophthalma Nouvel & Holthuis, 1957 | Processa macrophthalma | 3477 |
| Nikoides maldivensis Borradaile, 1915 | Nikoides maldivensis | 19 |
| Processa manningi De Grave & Felder, 2012 | Processa manningi | 3477 |
| Nika mediterranea Parisi, 1915 | Processa canaliculata | 75097 |
| Processa moana Yaldwyn, 1971 | Processa moana | 3477 |
| Processa modica Williamson & Rochanaburanon, 1979 | Processa modica | 1398 |
| Processa nouveli Al-Adhub & Williamson, 1975 | Processa nouveli | 3477 |
| Processa nouveli holthuisi Al-Adhub & Williamson, 1975 | Processa nouveli | 3477 |
| Ambidexter panamensis Abele, 1972 | Ambidexter panamensis | 19 |
| Processa parva Holthuis, 1951 | Processa parva | 3477 |
| Processa peruviana Wicksten, 1983 | Processa peruviana | 19 |
| Processa profunda Manning & Chace, 1971 | Processa profunda | 19 |
| Processa prostatica Zariquiey Cenarro, 1941 | Processa canaliculata | 75097 |
| Processa pygmaea Burukovsky, 1990 | Processa pygmaea | 3477 |
| Processa riveroi Manning & Chace, 1971 | Processa riveroi | 19 |
| Nikoides schmitti Manning & Chace, 1971 | Nikoides schmitti | 19 |
| Nikoides sibogae de Man, 1918 | Nikoides sibogae | 3477 |
| Nikoides subdistalis Komai & Hirabayashi, 2021 | Nikoides subdistalis | 3477 |
| Processa sulcata Hayashi, 1975 | Processa sulcata | 3477 |
| Ambidexter swifti Abele, 1972 | Ambidexter swifti | 79679 |
| Ambidexter symmetricus Manning & Chace, 1971 | Ambidexter symmetricus | 19 |
| Processa tenuipes Manning & Chace, 1971 | Processa tenuipes | 19 |
| Processa vicina Manning & Chace, 1971 | Processa vicina | 19 |
| Processa vossi Manning, 1992 | Processa vossi | 19 |
| Processa wheeleri Lebour, 1941 | Processa wheeleri | 19 |
| Processa zostericola Hayashi, 1975 | Processa zostericola | 100230 |