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Home > Marine
Life > Red Seaweeds > Halymenia
spp.
Updated 10/10/2025
Family Halymeniaceae
HAWAII
Halymenia spp.
Kahe Point, Oahu, 20 feet
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Kaupo, Oahu, 6 feet |
Haleiwa Trench, Oahu, 70 feet
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Makua, Oahu, 25 feet
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Honokohau, Hawaii, 60 feet |
Kawaihae
tidepool, Hawaii
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Makai Pier, Waimanalo, Oahu, 6 feet |
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COCK'S COMB SEAWEED
| Large broad reddish-yellow blades with ragged edges seasonally common at
any depth. Arises from a single holdfast and has dissected margins.
The undescribed species formerly identified as Halymenia formosa
is the most common of several species in Hawaii. Microscopic
examination is required for species-level ID. |
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