Abylidae L. Agassiz, 1862 (original description)
Abylinae L. Agassiz, 1862 (basis of record)
Aequorea albida A. Agassiz, 1862 (original description)
Amphisbetia L. Agassiz, 1862 (original description)
Aureliinae Agassiz, 1862 (original description)
Bassia L. Agassiz, 1862 (original description)
Catostylus Agassiz, 1862 (original description)
Catostylus cruciatus (Lesson, 1830) (new combination reference)
Catostylus mosaicus (Quoy & Gaimard, 1824) (new combination reference)
Cepheidae Agassiz, 1862 (original description)
Clava leptostyla L. Agassiz, 1862 accepted as Clava multicornis (Forsskål, 1775) (original description)
Clytia (Trochopyxis) L. Agassiz, 1862 accepted as Clytia Lamouroux, 1812 (original description)
Clytia (Trochopyxis) bicophoba L. Agassiz, 1862 accepted as Clytia hemisphaerica (Linnaeus, 1767) (original description)
Clytia bicophora Agassiz, 1862 accepted as Clytia (Trochopyxis) bicophoba L. Agassiz, 1862 accepted as Clytia hemisphaerica (Linnaeus, 1767) (basis of record)
Clytia cylindrica Agassiz, 1862 accepted as Clytia gracilis (M. Sars, 1851) (original description)
Corymorpha pendula L. Agassiz, 1862 (original description)
Coryne rosaria L. Agassiz, 1862 (original description)
Cotylorhiza Agassiz, 1862 (original description)
Cyanea fulva Agassiz, 1862 (original description)
Cyaneidae L. Agassiz, 1862 (original description)
Cytaeididae L. Agassiz, 1862 (original description)
Desmonema L. Agassiz, 1862 (original description)
Desmonema gaudichaudi (Lesson, 1830) (new combination reference)
Diphasia Agassiz, 1862 (original description)
Ectopleura L. Agassiz, 1862 (original description)
Eucheilota duodecimalis A. Agassiz, 1862 (original description)
Eudendriidae L. Agassiz, 1862 (original description)
Eudendrium dispar L. Agassiz, 1862 (original description)
Gonionemus A. Agassiz, 1862 (original description)
Gonionemus vertens A. Agassiz, 1862 (original description)
Gossea L. Agassiz, 1862 accepted as Octobulbacea Zamponi, 1983 (original description)
Hydractinia polyclina L. Agassiz, 1860 (basis of record)
Hydractiniidae L. Agassiz, 1862 (original description)
Laodicea calcarata L. Agassiz, 1862 accepted as Laodicea undulata (Forbes & Goodsir, 1853) (original description)
Laodiceidae Agassiz, 1862 (original description)
Laomedea amphora L. Agassiz, 1862 (original description)
Leptobrachidae Agassiz, 1862 (original description)
Mastigias Agassiz, 1862 (original description)
Mastigias roseus (Reynaud, 1830) (new combination reference)
Melicertidae Agassiz, 1862 (original description)
Melicertum sensu L. Agassiz, 1862 (original description)
Melicertum campanula (Fabricius, 1780) (additional source)
Melicertum georgicum Agassiz, 1862 accepted as Melicertum octocostatum (M. Sars, 1835) (original description)
Phyllorhiza Agassiz, 1862 (original description)
Polyrhiza Agassiz, 1862 (original description)
Polyrhiza vesiculosa (Ehrenberg, 1837) (new combination reference)
Rhizogeton Agassiz, 1862 (original description)
Rhizogeton fusiformis L. Agassiz, 1862 (original description)
Semaeostomeae (original description)
Stomotoca L. Agassiz, 1862 (original description)
Stomotoca atra L. Agassiz, 1862 (original description)
Thysanostoma Agassiz, 1862 (original description)
Tima formosa L. Agassiz, 1862 (original description)
Tubularia couthouyi L. Agassiz, 1862 (original description)