Lesson, R. P. 1843. Histoire naturelle des zoophytes. Acalèphes. Librairie Encyclopédique de Roret, Paris. pp. i-vii, 1-596, plus atlas of 12 pls., available online athttps://www.biodiversitylibrary.org/page/3803187 page(s): 294 [details]
Schuchert, P.; Choong, H.; Galea, H.; Hoeksema, B.; Lindsay, D.; Manko, M.; Pica, D. (2025). World Hydrozoa Database. Laodicea Lesson, 1843. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=117141 on 2025-07-15
original descriptionLesson, R. P. 1843. Histoire naturelle des zoophytes. Acalèphes. Librairie Encyclopédique de Roret, Paris. pp. i-vii, 1-596, plus atlas of 12 pls., available online athttps://www.biodiversitylibrary.org/page/3803187 page(s): 294 [details]
basis of recordvan der Land, J.; Vervoort, W.; Cairns, S.D.; Schuchert, P. (2001). Hydrozoa, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 112-120 (look up in IMIS) [details]
Other
context source (Hexacorallia)Fautin, Daphne G. (2013). Hexacorallians of the World. (look up in IMIS) [details]
additional sourceBouillon, J.; Boero, F. (2000). Synopsis of the families and genera of the Hydromedusae of the world, with a list of the worldwide species. <i>Thalassia Salent. 24</i>: 47-296 (look up in IMIS) [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis Laodiceidae medusae with small manubrium, sometimes with small perradial lobes; with four radial canals, simple or with short lateral diverticula; with simple undulated gonads; with or without marginal cirri; with or without adaxial ocelli.
Hydroid colony stolonal, hydrotheca sessile, tubular, turning gradually into a pyramidal operculum formed by numerous converging flaps, with visible crease-line basally; hydrotheca often with transversal growth-rings, sometimes with basal constriction at origin, or exceptionally a poorly delimited pedicel; hydranth without intertentacular web, tentacles amphicoronate; gonotheca like hydrotheca but larger. [details]