Pugh, 1992
Definitive nectophore with hydroecium restricted to a pocket-like structure; branched somatocyst with no lateral bend at base; radial canals on nectosac arise from a single pedicular canal. Ridges of larval nectophore not spinose; same arrangement of radial canals. No special nectophore present on eudoxid.
Nectadamas diomedeae