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Phylum Annelida
Segmented Worms
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Segmented worms are a complex group of animals related to earthworms,
possessing segmented bodies, complete digestive tract, complex nervous
system, and bristle-like setae used for locomotion. They may
either be active or sedentary, free-living or tube-dwelling, with a
variety of feeding methods.
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Setae are sharp, deliver painful wounds and difficult to
remove. Don't touch! |
HAWAII
Sabellastarte
spectabilis
He'eia, Oahu, 2 feet
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He'eia, Oahu, 2 feet |
Moku O Loe, Kaneohe Bay, Oahu, 2 feet
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Moku O Loe, Kaneohe Bay, Oahu, 4 feet |
Moku O Loe, Kaneohe Bay, Oahu, 4 feet
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Moku O Loe, Kaneohe Bay, Oahu, 4 feet |
Moku O Loe, Kaneohe Bay, Oahu, 4 feet
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Moku O Loe, Kaneohe Bay, Oahu, 4 feet |
Moku O Loe, Kaneohe Bay, Oahu, 4 feet
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Moku O Loe, Kaneohe Bay, Oahu, 4 feet |
Moku O Loe, Kaneohe Bay, Oahu, 4 feet
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Moku O Loe, Kaneohe Bay, Oahu, 4 feet |
Moku O Loe, Kaneohe Bay, Oahu, 2 feet
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Puako, Hawaii, 35 feet |
Moku O Loe, Kaneohe Bay, Oahu, 3 feet
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Moku O Loe, Kaneohe Bay, Oahu, 4 feet |
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Juveniles, Moku O Loe, Kaneohe Bay, Oahu, 3 feet |
Ft. Kamehameha, Oahu, 8 feet |
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FEATHERDUSTER WORM
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Common in calm waters where phytoplankton is abundant such as Kaneohe
Bay and Pearl Harbor. The worm's body occupies a flexible tube
formed by adhesion of silt from the water column. The feathery
feeding crown has two lobes, varies in color, and reaches 5 inches in
diameter. Formerly known as S. sanctijosephi.
Indo-Pacific.
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Spirobranchus giganteus
Kure Atoll, 50 feet
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He'eia, Oahu, 2 feet |
Hachijojima, Japan, 20 feet
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Hachijojima, Japan, 20 feet |
Hachijojima, Japan, 20 feet
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Moku O Loe, Kaneohe Bay, Oahu, 2 feet |
Haleiwa trench, Oahu, 20 feet
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Kewalo Pipe, Oahu, 60 feet
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Kewalo Hump, Oahu, 90 feet |
Kewalo Hump, Oahu, 90 feet |
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CHRISTMAS TREE WORM
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Common in Porites corals and limestone reef rock. The worm's
body creates a tunnel and extends a pair of colorful crowns that
function as gills and food gathering devices. The crowns are
rapidly retracted when disturbed and the hole is covered by a hard
operculum. The crowns of Hawaiian worms are especially sensitive
to movement and at only 1/2 inch tall are dwarfs compared to those seen
elsewhere.
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Loimia medusa
Kahuwai Bay, Hawaii, 10 feet
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Kaunolu Bay tidepool, Lana'i |
Sandy Beach tidepool, Oahu |
Makapu'u tidepool, Oahu |
SPAGHETTI WORM
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Common in tidepools, shallow reefs, and rubble. Feeding
tentacles are extended from the animal's body buried in the
substrate. The body is about 12 inches and the tentacles may be
more than 4 feet long. Preyed upon by large cone shells.
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Thelepus setosus
Kaneohe Sandbar, Oahu, 30 feet |
Moku O Loe, Kaneohe Bay, Oahu, 3 feet |
TUBE WORMS
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Abundant in silt and rubble on calm reefs, deep bays and lagoons.
Worldwide distribution. Tube diameter less than
1 cm.
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Mesochaetopterus sagittarius
Kapoho Point, Kailua, Oahu |
TURF TUBEWORMS
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These minute worms form dense colonies on wave benches. Tubes
only 3/8 inch tall are composed of sand grains glued together.
Sand and algae then accumulates between to form a carpet or mat.
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Salmacina dysteri
Moku o Loe, Kaneohe Bay, Oahu, 5 feet
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Moku o Loe, Kaneohe Bay, Oahu, 5 feet |
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SEA FROST WORMS
| Common attached to hard surfaces in harbors. Worldwide in warm
seas. |
Iphione muricata
Manana Island, Waimanalo,
Oahu, 30 feet
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SPINY SCALE WORM
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Uncommon under rocks. About 2 inches long.
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Eurythoe complanata
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Makapu'u tidepool, Oahu
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Makapu'u tidepool, Oahu |
Kapoho Point, Kailua, Oahu
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Ft. Kamehameha, Oahu, 3 feet |
Ft. Kamehameha, Oahu, 3 feet |
Commensal Shrimp, Ft. Kamehameha, Oahu, 3 feet |
ORANGE FIREWORM
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Common under rocks in shallow water. Ranges from gray to pink
with a greenish cast. Up to 6 inches but usually less.
Delivers a painful sting.
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Pherecardia striata
Sharks Cove, Pupukea, Oahu,
40 feet
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LINED FIREWORM
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Common on reefs as it searches for small invertebrate prey.
Attains several inches. Bristle-like setae deliver a painful sting
and become embedded in the skin.
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Palolo sp.
Makapu'u tidepool, Oahu |
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PALOLO WORM
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Thin worms that emerge from deep within the reef at night for
spawning. A delicacy harvested for food in the South Pacific.
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Not identified
Firehouse, Oahu, 35 feet
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Firehouse, Oahu, 35 feet |
Firehouse, Oahu, 35 feet
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| Buried in sand at 35 feet. North shore of Oahu. About 4
inches extended. |
INDO-PACIFIC
Chloeia sp.
Lembeh Strait, Sulawesi, Indonesia |
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| Crawls on soft sediments at night. Western Pacific. |
NORTHEAST PACIFIC
Dodecaceria fewkesi
Ogden Point, Victoria, Canada, 3 feet
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Ogden Point, Victoria, Canada, 3 feet |
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| Abundant in the intertidal zone. Hole diameter of 1/4 inch. |
Eudistylia vancouveri
Ogden Point, Victoria, Canada, 3 feet
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| Common in shallow water. Crown about 2 inches in diameter. |
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