| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Caligus asperimanus Pearse, 1951 |
Western Central Atlantic | ||
| Caligus atromaculatus Wilson, 1913 |
Western Central Atlantic | ||
| Caligus balistae Steenstrup & Lütken, 1861 |
Western Central Atlantic | 0.4 | |
| Caligus biaculeatus Brian, 1914 |
Central Atlantic | ||
| Caligus bonito Wilson, 1905 |
Worldwide except polar oceans | 0.65 | |
| Caligus chelifer Wilson, 1905 |
Western Central Atlantic | ||
| Caligus chorinemi Krøyer, 1863 |
West Atlantic | 0.29 | |
| Caligus clemensi Parker & Margolis, 1964 |
Northeast Pacific | ||
| Caligus confusus Pillai, 1961 |
Western Central Pacific | ||
| Caligus cordyla Pillai, 1963 |
Indo-West Pacific | ||
| Caligus coryphaenae Steenstrup & Lütken, 1861 |
Central Pacific and Western Atlantic | 0.56 | |
| Caligus curtus Müller, 1785 |
Northeast Atlantic | ||
| Caligus elongatus von Nordmann, 1832 |
Salmon sealouse | West Central Atlantic | 0.52 |
| Caligus epidemicus Hewitt, 1971 |
Western Pacific | ||
| Caligus epinepheli Yamaguti, 1936 |
Western Indian Ocean | ||
| Caligus haemulonis Krøyer, 1863 |
Western Central Atlantic | ||
| Caligus infestans Heller, 1865 |
Western Central Pacific | ||
| Caligus irritans Heller, 1865 |
Southeast Pacific | ||
| Caligus isonyx Steenstrup & Lütken, 1861 |
Western Atlantic and Pacific Ocean | ||
| Caligus kabatae Cressey, 1991 |
Western Central Atlantic | ||
| Caligus longicaudus Bassett-Smith, 1898 |
Western Indian Ocean | ||
| Caligus longipedis Bassett-Smith, 1898 |
Circumglobal | 0.55 | |
| Caligus mutabilis Wilson, 1905 |
West Atlantic | 0.35 | |
| Caligus novocaledonicus Kabata, 1968 |
Western Central Pacific | ||
| Caligus ocyurus Cressey, 1991 |
Western Central Atlantic | ||
| Caligus orientalis Gusev, 1951 |
Western Indian Ocean | ||
| Caligus patulus Wilson, 1937 |
Western Central Pacific | ||
| Caligus pelamydis Krøyer, 1863 |
Worldwide | 0.29 | |
| Caligus pomacentrus Cressey, 1991 |
Western Central Atlantic | ||
| Caligus praetextus Bere, 1936 |
Fish louse | Western Central Atlantic | |
| Caligus productus Dana, 1849 |
Worldwide | 0.47 | |
| Caligus quadratus Shiino, 1954 |
Worldwide | 0.45 | |
| Caligus robustus Bassett-Smith, 1898 |
Worldwide | 0.5 | |
| Caligus spinosurculus Pearse, 1951 |
West Central Atlantic | 0.38 | |
| Caligus suffuscus Wilson, 1913 |
Western Central Atlantic | ||
| Caligus wilsoni Delamare Deboutteville & Nunes-Ruivo, 1958 |
Northwest Atlantic | ||
| Caligus xystercus Cressey, 1991 |
Western Central Atlantic |