Busch, 1851
Anterior nectophore with complete dorsal ridge Deep hydroecium not open ventrally, although the divided mouth plate may be oblique. Somatocyst arises very close to wall of nectosac. A posterior nectophore is not developed. Three of the 4 known species are largely neritic.
Muggiaea atlantica
Muggiaea bargmannae
Muggiaea kochi