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Aequorea macrodactyla (Figure 3.17c) are large, lens‐shaped, medusae that swim nearly continuously, trailing the tentacles behind the bell to form a conical volume. Tentacles extend to about 50 times the bell diameter. Prey stick to the tentacles of the swimming medusa and are conveyed to the mouth. Like Stomotoca, the prey of Aequorea are largely gelatinous and include medusae, ctenophores, pteropods, and salps.

Laodicea undulata have a flat shape with large numbers of fine tentacles arranged radially around the bell, giving it an encounter volume like that shown in Figure 3.17a. It is believed to feed largely on small prey such as copepods.

Dichotomia cannoides has a conical bell with about 50 tentacles arranged around the bell margin. Its tentacles are deployed in a disc (Figure 3.17a) or cone (Figure 3.17c) configuration. It is believed to feed on small prey.