1. Sessile hydroid that forms feathery colonies
   - genus Sertularia

Type of: coelenterate genus

Part of: class Hydrozoa, Hydrozoa

• sea mew
• sea mile
• sea milkwort
• sea moss
• sea mouse
• sea nymph
• Sea of Azof
• Sea of Azoff
• Sea of Azov
• Sea of Cortes
• Sea of Japan
• Sea of Marmara
• Sea of Marmora
• Sea of Okhotsk
• sea onion
• sea otter
• sea pea
• sea pen
• sea pink
• sea poacher
• sea poker
• sea poppy
• sea power
• sea raven
• sea robber