Deepstar Enigma

The awesomely-named scyphozoan jellyfish Deepstaria enigmatica was christened after the deep-sea research submersible that collected the very first specimen back in 1966—the Deepstar 4000

The first specimen, which measured 50 cm in diamater, was encountered in the San Diego at a depth of 723 m. Other specimens of this deep-sea jelly have been collected from depths of over 1,000 m. 

In the first clip above, you can see the intricate network of gastrovascular (read: digestive system) canals that radiate from the stomach of D. enigmatica and across its vast umbrella. 

In the second clip, you can see its oddly-shaped gonads. Sexy.

Video source: ChablisChannel

References: Russell. 1967.

                    Winkler and van Soest. 1981.