Peduncle¼ or more the length of the manubrium; eight linear to sinuous gonads attached along most of the radial ... [details]
Benthocodon pedunculatus lacks centripetal canals; short peduncle; 8 sausage shaped gonads only attached to radial ... [details]
Rhopalonematidae with a hemispherical bell. Eight tubular or pendant gonads, medusa buds may be present. No ... [details]
Rhopalonematidae with a thick, hemispherical bell. Eight pendant gonads, medusa buds may be present, centripetal ... [details]
Key to species (Matsomoto et al., 2020): 1a. Eight centripetal canals present.................... P. ... [details]