Genus Pegantha Haeckel, 1879

? Pegasia Péron & Lesueur, 1810: 340,

type species Pegasia dodecagona Péron & Lesueur, 1810 by designation of Haeckel (1879).

? Polyxenia Eschscholtz, 1829: 118; type species Polyxenia cynostylis Eschscholtz, 1829 by monotypy.

Eurystoma Kölliker, 1853: 322, invalid homonym of Eurystoma Rafinesque, 1818 and others.

Pegantha Haeckel, 1879: 332; type species Pegantha martagon Haeckel, 1879 (Kramp, 1959a) .

Pegantha (Peganthella) Haeckel, 1879: 332, no type species designated.

Pegantha (Peganthissa) Haeckel, 1879: 332, no type species designated.

Polycolpa Haeckel, 1879: 327, no type species designated. ‒ Kramp, 1957 c: 65, synonym.

Solmoneta Haeckel, 1879: 353, no type type species designated. – Mayer, 1910: 439, synonym.

Otoporpa Xu & Zhang, 1978: 50; type species Otoporpa polystriata Xu & Zhang, 1978 by original designation. n. syn.

Diagnosis: Narcomedusae without manubrial pouches; with peripheral canal system; with gonads on periphery of stomach, ring-like, or covering bulges of the mesoglea, or pendant diverticula; with numerous tentacles leaving exumbrella at the level of manubrium attachment to subumbrella. With otoporpae.

Remarks: The genus Otoporpa Xu & Zhang, 1978 is here regarded as synonym of Pegantha . For more details see below under P. polystriata .