Antaria coerulescens Claus, 1866 accepted as Oncaea venusta Philippi, 1843 represented as Oncaea venusta venusta Philippi, 1843 (original description)
Antaria coerulescens Claus, 1866 accepted as Oncaea venusta Philippi, 1843 represented as Oncaea venusta venusta Philippi, 1843 (additional source)
Antaria mediterranea Claus, 1863 accepted as Oncaea mediterranea (Claus, 1863) (additional source)
Calanella hyalina Claus, 1866 accepted as Eucalanus hyalinus (Claus, 1866) (original description)
Calanella mediterranea Claus, 1863 accepted as Eucalanus attenuatus (Dana, 1849-1852) accepted as Pareucalanus attenuatus (Dana, 1849-1852) (additional source)
Calanus mastigophorus Claus, 1863 accepted as Clausocalanus mastigophorus (Claus, 1863) (additional source)
Candace bispinosa Claus, 1863 accepted as Candacia bispinosa Claus, 1863 (additional source)
Candacia bispinosa Claus, 1863 (additional source)
Canthocamptus parvulus Claus, 1866 accepted as Ameira parvula (Claus, 1866) (original description)
Canthocamptus setosus Claus, 1866 accepted as Mesochra pygmaea (Claus, 1863) represented as Mesochra pygmaea pygmaea (Claus, 1863) (original description)
Cetochilus Roussel de Vauzeme, 1834 accepted as Calanus Leach, 1816 (source of synonymy)
Cetochilus helgolandicus Claus, 1863 accepted as Calanus helgolandicus (Claus, 1863) (additional source)
Cetochilus septentrionalis Goodsir, 1843 accepted as Calanus finmarchicus (Gunnerus, 1770) (additional source)
Ceylonia armata Claus, 1866 accepted as Lourinia armata (Claus, 1866) represented as Lourinia armata armata (Claus, 1866) (original description)
Cleta forcipata Claus, 1866 accepted as Laophontopsis forcipata (Claus, 1866) (original description)
Cleta parvula Claus, 1866 accepted as Laophontopsis parvula (Claus, 1866) (original description)
Cleta similis Claus, 1866 accepted as Laophonte similis (Claus, 1866) (original description)
Copilia denticulata Claus, 1863 accepted as Copilia quadrata Dana, 1849-1852 (additional source)
Corycaeus elongatus Claus, 1866 accepted as Corycaeus crassiusculus Dana, 1849-1852 (original description)
Corycaeus parvus Claus, 1866 accepted as Farranula rostrata (Claus, 1863) (original description)
Dactylopus brevicornis Claus, 1866 accepted as Paradactylopodia brevicornis (Claus, 1866) (original description)
Dactylopus cinctus Claus, 1866 accepted as Amphiascopsis cinctus (Claus, 1866) (original description)
Dactylopus flavus Claus, 1866 accepted as Dactylopodella flava (Claus, 1866) (original description)
Dactylopus longirostris Claus, 1863 accepted as Amphiascus longirostris (Claus, 1863) accepted as Paramphiascopsis longirostris (Claus, 1863) (additional source)
Dactylopus macrolabris Claus, 1866 accepted as Dactylopusia macrolabris (Claus, 1866) accepted as Dactylopusioides macrolabris (Claus, 1866) (original description)
Dactylopus similis Claus, 1866 accepted as Dactylopusia similis (Claus, 1866) accepted as Amphiascus similis (Claus, 1866) accepted as Amphiascopsis similis (Claus, 1866) accepted as Amonardia similis (Claus, 1866) (original description)
Dactylopus tenuicornis Claus, 1863 accepted as Diosaccus tenuicornis (Claus, 1863) (additional source)
Dactylopus tisboides Claus, 1863 accepted as Dactylopusia tisboides (Claus, 1863) (additional source)
Dactylopusia macrolabris (Claus, 1866) accepted as Dactylopusioides macrolabris (Claus, 1866) (original description)
Dias longiremis Lilljeborg, 1853 accepted as Acartia (Acartiura) longiremis (Lilljeborg, 1853) (additional source)
Eucalanus elongatus hyalinus Claus, 1866 accepted as Eucalanus elongatus (Dana, 1849-1852) represented as Eucalanus elongatus elongatus (Dana, 1849-1852 (original description)
Euchaeta prestandreae Philippi, 1843 accepted as Euchaeta marina (Prestandrea, 1833) (additional source)
Harpacticus nicaeensis Claus, 1866 represented as Harpacticus nicaeensis nicaeensis Claus, 1866 (original description)
Harpacticus nicaeensis nicaeensis Claus, 1866 (original description)
Ichthyophorba denticornis nicaeensis Claus, 1863 (additional source)
Irenaeus patersonii Claus, 1866 accepted as Anomalocera patersonii Templeton, 1837 (original description)
Jurinia Claus, 1866 accepted as Lourinia Wilson C.B., 1924 (original description)
Jurinia armata Claus, 1866 accepted as Ceylonia armata Claus, 1866 accepted as Lourinia armata (Claus, 1866) represented as Lourinia armata armata (Claus, 1866) (original description)
Liljeborgia Claus, 1866 accepted as Cletodes Brady, 1872 (original description)
Lilljeborgia linearis Claus, 1866 accepted as Cletodes linearis (Claus, 1866) (original description)
Oithona similis Claus, 1866 (original description)
Oithona spinirostris Claus, 1863 accepted as Oithona setigera Dana, 1853-1855 represented as Oithona setigera setigera Dana, 1853-1855 (additional source)
Pleuromma gracile Claus, 1863 accepted as Pleuromamma gracile Claus, 1863 accepted as Pleuromamma gracilis Claus, 1863 represented as Pleuromamma gracilis gracilis Claus, 1863 (additional source)
Saphirinella pellucida Claus, 1866 accepted as Copilia quadrata Dana, 1849-1852 (original description)
Saphirinella vitrea Claus, 1866 accepted as Copilia vitrea (Haeckel, 1864) (original description)
Sapphirina gegenbauri (Haeckel, 1864) accepted as Sapphirina ovatolanceolata Dana, 1849-1852 (additional source)
Sapphirinella Claus, 1863 accepted as Saphirinella Claus, 1863 accepted as Copilia Dana, 1849-1852 (additional source)
Sapphirinella pellucida Claus, 1866 accepted as Saphirinella pellucida Claus, 1866 accepted as Copilia quadrata Dana, 1849-1852 (original description)
Sapphirinella stylifera (Lubbock, 1856) accepted as Copilia mirabilis Dana, 1849-1852 (additional source)
Sapphirinella vitrea Claus, 1866 accepted as Saphirinella vitrea Claus, 1866 accepted as Copilia vitrea (Haeckel, 1864) (original description)
Scutellidium Claus, 1866 (additional source)
Scutellidium Claus, 1866 (original description)
Scutellidium tisboides Claus, 1866 accepted as Scutellidium longicauda (Philippi, 1840) accepted as Scutellidium longicaudum longicaudum (Philippi, 1840) (original description)
Tachidius minutus Claus, 1866 accepted as Ectinosoma melaniceps Boeck, 1865 (original description)
Temora armata Claus, 1866 accepted as Temora stylifera (Dana, 1853-1855) (original description)
Thalestris rufoviolascens Claus, 1866 (original description)
Tisbe furcata (Baird, 1837) represented as Tisbe furcata furcata (Baird, 1837) (additional source)
Undina rostrata Claus, 1866 accepted as Euchirella rostrata (Claus, 1866) (original description)

 Taxonomic remark

 for Sapphirinella Claus, 1863

Claus, C. (1866) :17 reported Sapphirinella = Hyalophyllum for 2 species S. stylifera = pellucida and S. vitrea = ... [details]