Semaeostomeae

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  • Order Semaeostomeae L. Agassiz 1862
  • Characteristics of the Order (from Kramp 1961)

Scyphomedusae with umbrella margin cleft into lappets; without a coronal furrow and without pedalia; with (or without) hollow marginal tentacles and with marginal rhopalia; with a single central mouth opening provided with four large curtain-like or gelatinous lips; with gonads in sac-like folds of the endodermal wall of the subumbrella.

Semaeostomeae Species

Based largely on Kramp (1961), Mianzan & Cornelius (1999)

Collections: M = morphology, D = DNA, Type = *

Key:

Family (3)

  • Genus (19)
    • Species (63)


Cyaneidae L. Agassiz 1862

Cassiopea andromeda (Forskål 1775)
(L. Agassiz 1862)
  • Cyanea Péron & Lesueur 1810 
    • annasethe (Haeckel 1880) - Tasmania (D,M), Victoria (D,M)
    • annaskala von Lendenfeld 1884
    • buitendijki Stiasny 1919
    • capillata (Linné 1758) * - Alaska (D), Norway (D)
    • citrea (Kishinouye 1910)
    • ferruginea Eschscholtz 1829
    • fulva L. Agassiz 1862
    • lamarcki Péron & Lesueur 1810
    • mjöbergi Stiasny 1921
    • muellerianthe Haacke 1887
    • nozakii Kishinouye 1891
    • postelsi Brandt 1838
    • purpurea Kishinouye 1910
    • rosea Quoy & Gaimard 1824 - New South Wales(D,M)

  • Desmonema L. Agassiz 1862
    • chierchianum Vanhöffen 1888
    • comatum Larson 1986
    • gaudichaudi (Lesson 1832) *
    • glaciale Larson 1986

  • Drymonema Haeckel 1880
    • dalmatinum Haeckel 1880 *
    • gorgo F. Müller 1883


Pelagiidae Gegenbaur 1856

  • Chrysaora Péron & Lesueur 1810
    • achlyos Martin, Gershwin, Burnett, Cargo & Bloom 1997
    • africana (Vanhöffen 1902)
    • blossevillei Lesson 1830
    • colorata (Russell 1964)
      Chrysaora colorata (Russell 1964) Monterey Bay Aquarium
    • depressa (Kishinouye 1902)
    • fulgida (Reynaud 1830)
    • fuscescens Brandt 1835
      Chrysaora fuscescens Brandt 1835 Monterey Bay Aquarium
    • helvola Brandt 1838
    • hysoscella (Linné 1766) *
    • lactea Eschscholtz 1829 
      Chrysaora lactea Eschscholtz 1829 Cananeia county, Brazil
    • melanaster Brandt 1838
    • pacifica (Goette 1886)
    • plocamia (Lesson 1832)
    • quinquecirrha (Desor 1848)
      Chrysaora quinquecirrha (Desor 1848) Bahrain
  • Pelagia Péron & Lesueur 1810
    • noctiluca (Forskål 1775) *
      Pelagia noctiluca (Forskål 1775) New Zealand

More Pelagia images here.


  • Sanderia Goette 1886
    • malayensis Goette 1886


Ulmaridae Haeckel 1879

  • Aurelia Péron & Lesueur 1810
    • aurita (Linné 1758) * - N. Europe (D), NE USA (D)
    • coerulea von Lendenfeld 1884
    • colpota Brandt 1838
    • labiata Chamisso & Eysenhardt 1821
    • limbata (Brandt 1835) - molecular "LIM"
    • maldivensis Bigelow 1904
    • solida Browne 1905
    • sp. 1 (morphological, molecular)
      Aurelia sp.1 Long Beach, California, USA
      - California (D), France (D), Japan (D), New South Wales (D), Perth (D)
    • sp. 2 (molecular)
    • sp. 3 (morphological, molecular)
      Aurelia sp.3 Lake Tketau, Mecherchar, Palau
    • sp. 4 (morphological, molecular)
      Aurelia sp.4 Big Jellyfish Lake, Koror, Palau
    • sp. 5 (molecular)
    • sp. 6 (morphological, molecular)
    • sp. 7 (molecular)
    • sp. 8 (molecular)
    • sp. 9 (molecular)
    • sp. 10 (molecular) cf. limbata
    • sp. 11 (molecular)
      Aurelia sp.11 Kwajalein, Marshall Islands


  • Aurosa Haeckel 1880
    • furcata Haeckel 1880 *
  • Deepstaria Russell 1967
    • enigmatica Russell 1967 *
    • reticulum Larson, Madin & Harbison, 1988

  • Discomedusa Claus 1877
    • Lobata Claus 1877 *
    • philippina Mayer 1910
    • sp. Moore 1949

  • Diplulmaris Maas 1908
    • antarctica Maas 1908 *
    • malayensis Stiasny 1935


  • Floresca Haeckel 1880
    • parthenia Haeckel 1880 *
  • Parumbrosa Kishinouye 1910
    • polylobata Kishinouye 1910 *

Phacellophora Brandt 1835

    • camtschatica Brandt 1838 *
      Phacellophora camtschatica Brandt 1838


  • Poralia Vanhöffen 1902
    • rufescens Vanhöffen 1902 *
  • Stellamedusa Raskoff and Matsumoto 2004
    • ventana Raskoff and Matsumoto 2004 *
      Stellamedusa ventana Raskoff and Matsumoto 2004
      More Stellamedusa images here. See also MBARI S. ventana for more information.
  • Sthenonia Eschscholtz 1829
    • albida Eschscholtz 1829 *
  • Stygiomedusa Russell 1959
  • Tiburonia Matsumoto, Raskoff and Lindsay 2003
    • granrojo Matsumoto, Raskoff and Lindsay 2003 *
      Tiburonia granrojo Matsumoto, Raskoff and Lindsay 2003
      Tiburonia granrojo Matsumoto, Raskoff and Lindsay 2003
      Photographs courtesy of Monterey Bay Aquarium Research Institute
  • Ulmaris Haeckel 1880
    • prototypus Haeckel 1880 *
    • snelliusi Stiasny 1935 - Please see Zoo Bank [1] for more information.

Compiled by M.N Dawson, G. Jarms, A.C. Morandini, F. Pagès. Update pending.