Bathykorus bouilloni

…is a species of Aeginid hydrozoan that is the sole member of the genus Bathykorus. Bathykorus bouilloni is native to the Arctic Ocean and is most common around Greenland and northern Canada. B. bouilloni is a deep water species and is found in waters ranging from 800 to 2,500 m (2,600 to 8,200 ft). Because of this ‘extreme’ habitat it is difficult to study and much is still unknown about its biology and ecology.

Classification

Animalia-Cnidaria-Hydrozoa-Trachylinae-Narcomedusae-Aeginidae-Bathykorus-B. bouilloni

Image: Kevin Raskoff

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Aegina citrea

Sometimes known as the “Golf Tee Medusa” Aegina citrea is a species of Aeginid hydrozoan that boasts a cosmopolitan distribution throughout the Atlantic and Pacific oceans. Like other many other cnidarians Aegina citrea is a planktonic ‘predator’ feeding on small invertebrates and other organisms. 

Classification

Animalia-Cnidaria-Hydrozoa-Trachylinae-Narcomedusae-Aeginidae-Aegina-A. citrea

Images: ©Robert Lee

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