SEA ANEMONES AND THEIR KIN

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SEA ANEMONES AND THEIR KIN
Daphne G. Fautin University of Kansas Ecology
Evolutionary Biology and KU Natural History
Museum
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SEA ANEMONES LIVE EVERYWHERE IN THE OCEAN
The Galathea Deep Sea Expedition
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What are sea anemones?
Rick Sammon
THESE ARE
Andy Lamb
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What are sea anemones?
NOAA-HURL Archives, C. Kelley
THESE ARE NOT
? - sorry
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What are sea anemones?Members of phylumCnidaria
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What are sea anemones?
All members of Phylum Cnidaria form nematocysts
-- the most complex structure secreted by an
animal
About 100 µm long
Used offensively (to capture prey) and
defensively (to protect themselves)
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What are sea anemones?
All members of Phylum Cnidaria form nematocysts
-- the most complex structure secreted by an
animal
About 100 µm long
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What are sea anemones?
MOUTH
ORAL DISC
TENTACLE
COLUMN
PEDAL DISC (BASE)
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What are sea anemones?

• Members of phylum Cnidaria, class Anthozoa

NOAA-HURL Archives, C. Kelley
As are these
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What are sea anemones?
Members of phylum Cnidaria, class Anthozoa,
subclass Hexacorallia
The other subclass is Octocorallia
NOAA-HURL Archives, M. Slattery
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What are sea anemones?
Members of phylum Cnidaria, class Anthozoa,
subclass Hexacorallia ORDERS ACTINIARIA (true
sea anemones) Antipatharia (black
corals) Ceriantharia (tube anemones) Corallimorp
haria (coral-like anemones) Scleractinia (stony
or true corals) Zoantharia (zoanthids)
Chris Kelley - HURL
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What are cerianthids?
Members of phylum Cnidaria, class Anthozoa,
subclass Hexacorallia, order Ceriantharia
Chris Kelley - HURL
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What are cerianthids?(tube anemones)
TWO CIRCLETS OF TENTACLES
A TUBE
C. Kelley
400-600 m
0-200 m
R. Moffitt
Both photos courtesy of NOAA-HURL Archives
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NOT a cerianthid
Boloceroides daphneae
NOAA-HURL Archives, C. Kelley
gt1000 m
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What are zoanthids?
Members of phylum Cnidaria, class Anthozoa,
subclass Hexacorallia, order Zoanthidea
Single circlet of tentacles at margin
Many colonial
Epizoanthus karenae
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Zoanthid or actiniarian?
NOAA-HURL Archives, A. Baco-Taylor
600-800 m
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What are sea anemones?
Members of phylum Cnidaria, class Anthozoa,
subclass Hexacorallia, order Actiniaria
Chris Kelley - HURL
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What are corallimorpharians?
Members of phylum Cnidaria, class Anthozoa,
subclass Hexacorallia, order Corallimorpharia
Bacchat Salvat
Chris Kelley - HURL
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CORALLIMORPHARIANS
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CORALLIMORPHARIANS
gt1000 m
MBARI
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Corallimorpharian or actiniarian?
0-200 m
NOAA-HURL Archives, R. Moffitt
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SCLERACTINIANS
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(No Transcript)
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What are sea anemones?
MOUTH
ORAL DISC
TENTACLE
COLUMN
PEDAL DISC (BASE)
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unidentifiable
TYPE 1
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unidentifiable
TYPE 2
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unidentifiable
TYPE 3
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Identifiable !
Bathyphellia australis
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Aliciidae
NOAA-HURL Archives, R. Grigg
0-200 m
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Liponema
MBARI
NOAA-HURL Archives, J. Maragos 600-800 m
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Metridium farcimen
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Isactinernus quadrilobatus
NOAA-HURL Archives,J. Maragos 200-400 m
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Actiniaria Hormathiidae
NOAA_HURL Archives, Amy Baco-Taylor
0-200 m
NOAA-HURL Archives, A. Malahoff
gt 1000 m
gt 1000 m
NOAA-HURL Archives, R. Embley
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Actiniaria Actinostolidae
gt 1000 m
NOAA-HURL Archives, C. Young
Chris Kelley - HURL
MBARI
Chris Kelley - HURL
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Identified as Dofleinia
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Chris Kelley - HURL
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SEARCH authors, journal, museum, taxonomy,
geography
DISPLAY images, synonymy, distribution
http//geoportal.kgs.ku.edu/hexacoral/anemone2
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SEARCH authors, journal, museum, taxonomy,
geography
DISPLAY images, synonymy, distribution
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SEARCH authors, journal, museum, taxonomy,
geography
DISPLAY images, synonymy, distribution
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COMMON NAMES
gt 1000 m
MBARI
NOAA-HURL Archives, K. Kelly
Venus fly-trap anemone
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THE END