Rhopalonema Gegenbaur, 1857

Schuchert, Peter & Collins, Richard, 2021, Hydromedusae observed during night dives in the Gulf Stream, Revue suisse de Zoologie 128 (2), pp. 237-356 : 334

publication ID	https://doi.org/ 10.35929/RSZ.0049
persistent identifier	https://treatment.plazi.org/id/D0118A7C-5B6E-0076-FF21-F8EDFC357CAA
treatment provided by	Felipe
scientific name	Rhopalonema Gegenbaur, 1857
status

Treatment

Genus Rhopalonema Gegenbaur, 1857 View in CoL View at ENA

Trachynema Gegenbaur, 1854: 53 View in CoL ;

type species Trachynema ciliatum Gegenbaur, 1854 by monotypy.

Rhopalonema Gegenbaur, 1857: 251 View in CoL ; type species Rhopalonema velatum Gegenbaur, 1857 View in CoL by monotypy.

Calyptra Leuckart, 1856: 14 View in CoL ; type species Calyptra umbilicata Leuckart, 1856 by monotypy; invalid junior homonym of Calyptra Ochsenheimer 1816 View in CoL [ Lepidoptera ] and others.

Marmanema Haeckel, 1879: 261 View in CoL ; type species not designated.

Trachyneme Whiteaves, 1901: 29 View in CoL ; spelling error.

Diagnosis: Rhopalonematidae without gastric peduncle; gonads along radial canals; marginal tentacles solid, of two kinds: perradial tentacles long, with large, clubshaped ending; inter- and adradial tentacles short with swollen end. Statocysts enclosed in mesoglea when fully developed.