"Umbrella: to 18 cm in diameter; mesoglea thin; exumbrella smooth. Marlia: 16, alternating with 1-3 marginal tentacles. Tentacles: 16-48, laterally compressed, with abaxial nematocyst warts along length. Oral arms: 4, frilled, curtainlike, length about equal to bell diameter, lip margin studded with nematocyst papillae. Gonads: 4, everted, saclike. Gastrovascular canals: total 32-96; rhopaliar canals: 16, with interjacent 1-5 tentacular canals between each rhopalium; all canals: proximally unbranched for innter 1/2-2/3 of length, distally anastomosing in an irregular network. Ring canal: near umbrellar margin. Color: according to color photographs by Rybakov [1976], umbrella: colorless; tentacles: whitish; and gastrodermis of stomach and of oral arms: reddish-orange."
(Larson, 1986)
Diplulmaris antarctica is a species of Antarctic jellyfish in the family Ulmaridae.[1]
This species grows up to 18 cm (7 in) in diameter.[2] Diplulmaris antarctica has 16 - 48 laterally compressed, white tentacles and a white frontal lobe. It has reddish-orange stomach gastrodermis and frilled oral arms of the same colour.
This jellyfish is normally infested with Hyperiella dilatata. These hyperiid amphipods appear as white dots on the surface of the bell, and do not appear to eat the medusa.[3]
Diplulmaris antarctica feeds on copepods, euphausiid larvate, medusae, ctenophore, fish larvae,[2] and molluscan pteropods such as Clione antarctica[4] and Limacina antarctica.[4]
This species is found in Antarctica including the Antarctic Peninsula in continental shelf waters near the surface.
