Hydrozoa taxon details

Orchistoma Haeckel, 1879

117176  (urn:lsid:marinespecies.org:taxname:117176)

accepted
Genus
Mesonema pileus Lesson, 1843 accepted as Orchistoma pileus (Lesson, 1843) (type by subsequent designation)
Tetracannota Mayer, 1900 · unaccepted (synonym)
marine, brackish, fresh, terrestrial
recent only
Haeckel, E. (1879). Das System der Medusen. Erster Teil einer Monographie der Medusen. <em>Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena.</em> 1: XX+1-360, 320 plates., available online at https://www.biodiversitylibrary.org/page/32605578
page(s): 138 [details]   
Schuchert, P. (2021). World Hydrozoa Database. Orchistoma Haeckel, 1879. Accessed at: https://www.marinespecies.org/hydrozoa.../aphia.php?p=taxdetails&id=117176 on 2022-05-21
Date
action
by
2004-12-21 15:54:05Z
created
2006-09-26 06:56:50Z
changed
Martinez, Olga
2011-03-11 07:10:22Z
checked
2016-03-11 07:17:01Z
changed

original description Haeckel, E. (1879). Das System der Medusen. Erster Teil einer Monographie der Medusen. <em>Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena.</em> 1: XX+1-360, 320 plates., available online at https://www.biodiversitylibrary.org/page/32605578
page(s): 138 [details]   

original description  (of Tetracannota Mayer, 1900) Mayer, A. G. (1900). Some medusae from the Tortugas, Florida. <em>Bulletin of the Museum of Comparative Zoology of Harvard.</em> 37: 13-82, pls 1-44., available online at https://www.biodiversitylibrary.org/page/4271669
page(s): 46 [details]   

basis of record van 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]   
From editor or global species database
Diagnosis 
With the characteristics of the family.
Medusa with very short manubrium on large gastric peduncle; mouth with 8-30 sinuous or crenulated folds; eight or more radial canals, simple, ramified, or in clusters of four; up to 64 marginal tentacles, laterally compressed; no marginal cirri, but in intertentacular space filiform, tentaculiform structures devoid of marginal bulbs, not in contact with circular canal; gonads usually on proximal parts of radial canals; numerous (up to 800) adaxial ocelli; without statocysts, without cordyli, without excretory pores or papillae.
Hydroid phase unknown. [details]