| Corymorpha abaxialis | Umbrella “dome-shaped with slightly conical apex terminating in a patch of small |
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| (Kramp, 1962)—M | papillae”; mesoglea thick, especially apically; no apical canal; mouth circular; main |
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| tentacle “mounted on a very large and broad basal bulb with a faintly indicated |
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| abaxial spur grasping around the umbrella margin”, “provided with prominent |
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| clusters of nematocysts in one row along the abaxial side ”; 3 rudimentary bulbs |
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| with no tentacles, that opposite the main tentacle being slightly larger than the |
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| lateral ones (Kramp 1962: 309–310). Vietnam, Strait of Malacca, Papua New |
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| Guinea, Taiwan Strait (Xu & Huang 2003: 139) |
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| Corymorpha annulata | Umbrella with “pointed apex with an apical canal”; manubrium wide, as long |
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| (Kramp, 1928)—M | as subumbrella; main tentacle “long, moniliform, with numerous rings of |
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| nematocysts”; “three short, cone-shaped tentacles, the one opposite the main |
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| tentacle longer than two others” (Kramp 1968: 14–15). India, Sunda Strait, NE |
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| Australia, Red Sea, with a questionable record from the Adriatic Sea (Schuchert |
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| 2010: 406) |
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| Corymorpha anthoformis | Polyp described in the original account. Gonophores as “ fixed sporosacs ”. Japan |
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| (Yamada, 1977)—P + G | (Yamada et al. 1977: 151–154) |
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| Corymorpha apiciloculifera | A conspicuous, dome-shaped apical projection; apical chamber spherical, filled |
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| (Xu & Huang, 2003)—M | with “red-brown pigment”; mesoglea quite thick; manubrium large, almost filling |
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| subumbrellar cavity; bulb of main tentacle swollen adaxially, spherical; opposite |
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| bulb “larger than the two others” that are rudimentary and bear no tentacles; 6 |
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| abaxial projections shortly after the insertion of main tentacle, followed by 9 |
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| abaxially-placed nematocyst clusters, and a terminal one of nearly the same size. |
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| Taiwan Strait (Xu & Huang 2003: 136–137, 143) |
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| Corymorpha balssi | The polyp lives exclusively in association with a crab; the gonophore is, with any |
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| Stechow, 1932—P | doubt, a medusa (Galea, unpublished results). Western Australia (Stechow 1932: |
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| 82), Indonesia (Galea, unpublished results) |
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| Corymorpha bigelowi | Polyp raised by Sassamann & Rees (1978). Medusa with “pointed apex at the end |
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| (Maas, 1905)—P + M | of which is a collection of small papillae”; no exumbrellar nematocysts; apical |
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| canal, when present, extending up for 2/3 the height of the apical process; main |
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| tentacle with as much as 30 adaxial nematocysts clusters, in addition to the apical |
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| one; 3 perradial bulbs “each with a short, pointed tentacle without nematocyst |
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| clusters”; all tentacles hollow (Maas 1905: 7; Kramp 1968: 14; Sassamann & Rees |
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| 1978). Indo-Malayan region, coasts of India, off the E coast of Africa, southern |
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| Japan and Chefoo in China (Kramp 1968: 14, medusa) |
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