Polyp. Knobbed ends of tentacles packed with nematocysts (stinging cells).

Club Polyp

Coryne uchidai. Barcode Index Number ACR4087

Hydrozoa: Corynidae

First record outside Japan

Off Genoa Street, Lido Island, Newport Beach, Orange County, CA. 3/24/14. © Peter J. Bryant. Identified by Peter Schuchert, World Hydrozoa Database.

Video of feeding on copepod (speed x8); Video of feeding on copepod (speed x8); Video of feeding on copepod (speed x8);

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Colony

Female polyp with sporosacs

Sporosacs containing eggs

Polyp having swallowed a fish