Echinoderms at the Hawaii-2 Observatory

Observed in video surveys (ROV Jason in 1998 and 1999 and ROV JasonII in 2003 and 2004) and/or camera sled/otter trawl transects (in 2003)

 

Except for those species verified by collection (indicated by *), these classifications are best guesses and subject to change.  Classification was checked first with Tree of Life and then with European Register of Marine Species in June 2006.
Click on the filename prefix for additional photos of that specific type of organism.
*** NOTE FOR BENTHIC VS. PELAGIC: Organisms were classified as benthic if they were observed at least some times on the seafloor. ***

*** NOTE FOR VIDEO CLIPS: Video clips on this page are either Windows Media Video 8 files (*.WMV).  Click for a list of all video clips (including MPEG and MOV files). ***

 

Class, Order
Family
Genus, species
(* verified by collection)
Common Name
Filename Prefix
Type Photo
Benthic or Pelagic?
Asteroidea, Brisingida
Freyellidae
Freyastera benthophila *
Sea star
ech_ast_1
brisingid
Benthic
Crinoidea
Bathycrinidae?
Similar to Bathycrinus
Stalked crinoid
ech_cri_1
crinoid
Benthic
Holothuroidea, Elasipodida? Psychropotidae? Similar to Benthodytes
Sea cucumber
ech_hol_Ben_1
sea_cucumber
Benthic

Holothuroidea, Elasipodida

Pelagothuridae
Enypniastes eximia *

Sea cucumber

ech_hol_Eny_1
Enypniastes
Click for video1 , video2 , video3
Benthic
Holothuroidea, Aspidochirotida
Synallactidae
Paelopatides
Sea cucumber ech_hol_Pae_1
Paelopatides
Click for video
Benthic
Holothuroidea, Elasipodida Elpidiidae
Peniagone diaphana *
Sea cucumber
ech_hol_Pen_1
Peniagone
Click for video
Benthic
Holothuroidea, Elasipodida Elpidiidae
Peniagone or Amperima
Sea cucumber ech_hol_Pen_2
sea_cucumber
Click for video
Benthic
Holothuroidea, Elasipodida Elpidiidae
Peniagone leander
Sea cucumber ech_hol_Pen_3
Peniagone
Click for video
Benthic
Holothuroidea, Elasipodida? Elpidiidae?
Not determined
Sea cucumber ech_hol_Pen_4
sea_cucumber
Click for video
Benthic
Holothuroidea, Elasipodida Laetmogonidae
Psychronaetes (hanseni?)
Sea cucumber ech_hol_Psn_1
Psychronaetes
Benthic
Holothuroidea, Elasipodida Psychropotidae
Psychropotes semperiana *
Sea cucumber ech_hol_Psp_1
Psychropotes
Benthic
Holothuroidea, Elasipodida Psychropotidae
Psychropotes (verrucosa?)
Sea cucumber ech_hol_Psp_2
Psychropotes
Benthic
Holothuroidea, Aspidochirotida Synallactidae
Synallactes profundi *
Sea cucumber ech_hol_Syn_1
Synallactes
Benthic
Holothuroidea?, Aspidochirotida? Synallactidae?
Similar to Mesothuria
Sea cucumber ech_hol_unid_1
sea_cucumber?
Benthic

Total number of types of echinoderms identified: 14, all benthic.


*** We would like to thank G. Hendler, C. Mah,  and D. Pawson for helping identify the echinoderms. ***

*** No ophiuroids or urchins have been observed at H2O. ***


Link to WHOI Technical Report (PDF)
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Page updated 22 June 2006 by Stace Beaulieu (stace@whoi.edu)