61. Category:Echinodermata - Wikimedia Commons Deutsch Stachelh uter English Echinoderms Fran ais chinoderme Lietuvių Dygiaodžiai Polski Szkarłupnie Portugu s Equinoderme Simple English http://commons.wikimedia.org/wiki/Echinodermata

Category:Echinodermata From Wikimedia Commons, the free media repository (Redirected from Echinodermata Jump to: navigation search Eukaryota Animalia ... Echinodermata Klein, 1734 Vernacular names Deutsch: English: Français: Lietuvių: Polski: Português: Simple English: Wikispecies has an entry on: Echinodermata ITIS Asteroidea Crinoidea ... Echinodermata Subcategories This category has the following 16 subcategories, out of 16 total. Fossil Echinoderms (10 C, 21 F) Extinct Echinodermata (23 C, 1 F) Unidentified Echinodermata (6 C, 13 F) A Asteroidea (10 C, 13 F) C Crinoidea (10 C, 7 F) Cystoidea (2 C, 1 F) E Echinodermata larva (1 C, 3 F) Echinoidea (14 C, 1 P, 33 F) H Holothuroidea (9 C, 3 F) O Ophiuroidea (4 C, 1 P, 5 F) Blastoidea (1 C, 1 F) Eocrinoidea (2 C, 2 F) † cont. Helicoplacoidea (2 C) Edrioasteroidea (4 C) Paracrinoidea (1 C) Echmatocrinus (1 F) Media in category "Echinodermata" The following 8 files are in this category, out of 8 total. Brockhaus and Efron ... 2,324,593 bytes Corthurnocystis.jpg 279,783 bytes Haeckel Amphoridea.jpg 1,733,502 bytes NSRW Sea Urchins and...

62. Crinoidea Extensive article about modern and ancient crinoids by William I. Ausich and Charles G. Messing for the Tree of Life project. http://tolweb.org/tree?group=Crinoidea&contgroup=Echinodermata

63. Echinoderms Considered as the best characterized and distinctive phylum of the Animal Kingdom, the sea urchins, sand dollars, sea stars, basket stars, sea lilies and sea cucumbers make up the http://www.wetwebmedia.com/echinode.htm

document.write(jscode); Home Information Pages: Marine Aquarium Articles/ FAQs Freshwater Aquarium Articles/ FAQs ... Articles/ FAQs Popular Pages: Features: Daily FAQs FW Daily FAQs SW Pix of the Day FW Pix of the Day ... Cover Images Related FAQs: Spiny-Skinned Animals Sea Lilies, Feather Stars Sea Stars 1 Sea Urchins ... Sea Cucumbers Related Articles: An Introduction to the Echinoderms: The Sea Stars, Sea Urchins, Sea Cucumbers and More By James W. Fatherree, M.Sc. Sea Cucumbers Seastars, Crown of Thorns ( Acanthaster ... Water Flow, How Much is Enough Spiny-Skinned Animals, Phylum Echinodermata By Bob Fenner A Culcita genus Biscuit Star Considered as the best characterized and distinctive phylum of the Animal Kingdom, the sea urchins, sand dollars, sea stars, basket stars, sea lilies and sea cucumbers make up the Echinodermata (='spiny-skinned). Many of these are attempted as marine aquaria specimens. Few specimens survive very long due to being inappropriate, poorly handled or forced into unsuitable habitats. Many species are outright dangerous to the their fellow tankmates and you, the hobbyist! Whether you "inherit" Echinoderms with "live" rock or plunk down your hard-earned cash on purpose for a specimen or two this article will inform and inspire you re these prickly metazoans.

64. Holothuroidea Overview, including characteristics, taxonomy, phylogenetic relationships, and fossil history. http://tolweb.org/tree?group=Holothuroidea&contgroup=Echinodermata

65. Underwater Field Guide To Ross Island & McMurdo Sound, Antarctica Photograph and information on this unidentified sea cucumber found here perched on algae. http://www.peterbrueggeman.com/nsf/fguide/echinodermata27.html

Field Guide ECHINODERMATA sea cucumber Cucumaria spp. These Cucumaria spp. sea cucumbers are impossible to identify to the species level from this photo . Even with specimens on hand, identification is difficult; the literature of this group is confusing and they have been referred to as Cucumaria georgiana -group Cucumaria spp. has been observed attached to sea urchins, branched bryozoans, and hydroid stalks . Here Cucumaria spp. sea cucumber is perched on algae Phyllophora antarctica on top of the sea urchin Sterechinus neumayeri Julian Gutt, personal communication, 1999; Polar Biology 11(3):145-155, 1991 want more info?

66. Underwater Field Guide To Ross Island & McMurdo Sound, Antarctica Photographs and information on this sea cucumber, one of the most widely spread species in the Weddell Sea. http://www.peterbrueggeman.com/nsf/fguide/echinodermata28.html

Field Guide ECHINODERMATA sea cucumber Heterocucumis steineni Heterocucumis steineni is found in Antarctica and the Antarctic Peninsula, South Orkney Islands, South Georgia Island, Falkland Islands, and Burdwood Bank from 1 to 1,200 meters depth H. steineni is beige to chestnut brown, can be almost white or white and brown in one specimen, and has dark spots between tentacles H. steineni is up to fifteen centimeters long Heterocucumis steineni may attach to other organisms like hydroids and fan-shaped bryozoans or it may live with the lower half of its body in sediment . This facultative life style may explain why its posterior feet are wart-like and its anterior feet are exceptionally long, up to five millimeters Heterocucumis steineni is a suspension feeder Heterocucumis steineni is one of the most widely spread Dendrochirotida sea cucumbers in the Weddell Sea Taxonomic Note: In earlier literature, appears under different genera including Cucumaria Ekmocucumis , and Heterocucumis C Vaney. Holothuries. Expedition Antarctique Francaise (1903-1905). Paris : Masson et Cie, 1906; Berichte zur Polarforschung 41:1-87, 1988;

67. Underwater Field Guide To Ross Island & McMurdo Sound, Antarctica Photographs and information on this sea cucumber in the family Cucumariidae which often lives attached to a sponge. http://www.peterbrueggeman.com/nsf/fguide/echinodermata29.html

Field Guide ECHINODERMATA sea cucumber Cucumariidae sp., possibly Staurocucumis liouvillei Staurocucumis liouvillei has been collected in Antarctica and the Antarctic Peninsula and Bouvet Island, Heard Island and South Georgia Island from 60 to 791 meters depth S. liouvillei has been collected at sizes up to eight centimeters long Staurocucumis liouvillei lives attached to sponges, gorgonians (as shown here), and large stones Here's a closer view of sea cucumber Cucumariidae sp., possibly Staurocucumis liouvillei NOTE: The gorgonian color differs from above due to the scanning method used to show better surface detail of the sea cucumber. Taxonomic Note: In earlier literature, it may appear under the genera Cucumaria or Abyssocucumis Berichte zur Polarforschung 41:1-87, 1988; Tethys 5(4):601-610, 1974; Polar Biology 11(3):145-155, 1991; Memoirs of Museum Victoria 59(2):297–325, 2002 Norbert Wu no longer grants permission for uncompensated use of his photos under any circumstances whatsoever; want more info?

68. Underwater Field Guide To Ross Island & McMurdo Sound, Antarctica Photographs and information on this large sea cucumber found in Antarctic waters. http://www.peterbrueggeman.com/nsf/fguide/echinodermata13.html

Field Guide ECHINODERMATA sea cucumber Bathyplotes bongraini Bathyplotes bongraini is found throughout Antarctica and the Antarctic Peninsula and Bouvet Island at depths from 4.5 to 768 meters B. bongraini has been collected at lengths up to 26 centimeters B. bongraini is usually colored dark pink with a distinct dark brown cross- band, two to three centimeters wide, slightly behind the middle of the body The dorsal conical papillae of Bathyplotes bongraini are 1-5 millimeters high B. bongraini is a sediment feeder . The mouth of B. bongraini is turned down (ventrally) and its anus is subdorsal Taxonomic Note: Older species name was fuscivinculum Zoologica Scripta 19(1):119-127, 1990; Polar Biology 11(3):145-155, 1991; Peter Brueggeman, personal communication (New Harbor 26 meters), 1999; Polar Biology 20(4):229-247, 1998; Memoirs of Museum Victoria 59(2):297–325, 2002; Polar Biology 29(2):83-96, 2006 Norbert Wu no longer grants permission for uncompensated use of his photos under any circumstances whatsoever; want more info?

69. Underwater Field Guide To Ross Island & McMurdo Sound, Antarctica Photographs and information on this brittle star which is a predator on large prey, primarily brittle stars including its own species. http://www.peterbrueggeman.com/nsf/fguide/echinodermata22.html

Field Guide ECHINODERMATA brittle star Ophiosparte gigas Ophiosparte gigas is found throughout Antarctica and the Antarctic Peninsula at depths from 8 to 1,200 meters . The disc of O. gigas is thick, mucus-covered, convex, and up to seven centimeters in diameter; its large disc relative to the arms makes it easy to recognize . The arms of O. gigas have spatulate arm spines, conical tube feet, and are up to seventeen centimeters long Ophiosparte gigas lives on soft substrate; its movement is made more efficient by its paddle-like arm spines and stilt-like tube feet O. gigas is colored pink, deep pink, pinkish orange, deep reddish, purplish brown, or brick red Ophiosparte gigas is an active benthic predator on large prey, primarily brittle stars (including its own species, Ophiurolepis gelida Ophionotus victoriae Ophiacantha sp., Ophiocten sp.), bivalves (including Adamussium colbecki Yoldia eightsi Yoldiella sabrina ), polychaete worms, crustaceans, and sponges O. gigas also preys on diatoms, algae, foraminifera, hydroids, nematodes, gastropods (including Nacella concinna ), sea spiders, ostracods, mysids, amphipods, isopods, euphausiids (including

70. Underwater Field Guide To Ross Island & McMurdo Sound, Antarctica Photographs and information on this brittle star which is a significant predator of other brittle stars including its own species. http://www.peterbrueggeman.com/nsf/fguide/echinodermata11.html

Field Guide ECHINODERMATA brittle star Ophionotus victoriae Ophionotus victoriae occurs throughout Antarctica and the Antarctic Peninsula, South Shetland Islands, South Sandwich Islands, South Georgia Island, and Bouvet Island in depths from 5 to 1,266 meters . The central disk of O. victoriae is large, flat and circular and can reach a diameter of four centimeters . The arms of O. victoriae are short, flattened, robust, and depressed, taper rapidly, and can reach a length of nine centimeters Ophionotus victoriae uses its two leading arms in a typical brittle star rowing fashion as it moves on the seafloor searching for food O. victoriae is variable in color, including brown, red-brown, brick-red, yellowish-pink, bluish grey, grey, white, brownish- violet with darker patches, grey with radial fawn streaks, and brownish-grey; pinkish-fawn banded arms have been observed Maximum age of O. victoriae has been estimated at 22 years Ophionotus victoriae is an opportunistic predator and also a scavenger and detrital feeder O. victoriae

71. Echinoderms Page 1 - Coral Reef Life On Sea And Sky A brief description of the phylum followed by a long list of annotated photographs. http://www.seasky.org/reeflife/sea2d.html

Enter your search terms Submit search form Web www.seasky.org Echinoderms Page 1 Cushion Star (Oreaster reticulatus) The cushion star is a thick-bodied species of starfish with short legs. It ranges in color from brown to orange, red, and yellow. Its hard shell is covered with raised knobby spines. This starfish is grows to a diameter of 10 inches, and is found on the sandy bottoms in the Atlantic waters from South Carolina to Florida. Its hard shell makes it a popular species among shell collectors. Sunflower Starfish (Pycnopodia helianthoides) The sunflower star is among the larger of the starfish species. With its 24 arms, it can reach a diameter of over 2 feet! The color of this starfish can range from purple to red, pink, brown, orange, and yellow. It is common along the Pacific coast and can be found along the rocky sea bottoms from Alaska to southern California. Pacific Starfish (Henricia leviuscula) This brightly colored starfish is a common species found along the western coast of the United States and Canada. It can range in color from red to orange, yellow, and purple. This starfish grows to a diameter of about 8 inches, and is found under rocks where it feeds on small sponges and algae. Short Spined Starfish (Henricia sanguinolenta) The short spined starfish is a coldwater species found in the northern waters from the Arctic to Cape Hatteras. They can be seen in a wide range of colors from orange to red, purple, yellow, and white. Dark red varieties are sometimes known as blood stars. They can be found scavenging along the rocky sea bottom.

72. Home Page A page from the Laboratory of Embryonic Gene Expression, included here for three beautiful photographs. http://www.its.caltech.edu/~mirsky/

Laboratory of embryonic gene expression Welcome to the Home Page of the Eric Davidson Laboratory at the California Institute of Technology .The major focus of research in our laboratory is on gene networks that control development and their evolution. Our areas of research include the transcriptional mechanisms by which specification of embryonic blastomeres occurs early in development; structure/function relationships in developmental cis-regulatory systems; sea urchin genomics; and regulatory evolution in the bilaterians. Most of our work is carried out on sea urchin embryos, which provide key experimental advantages. We pursue an integrated, "vertical" mode of experimental analysis, in that our experiments are directed at all levels of biological organization, extending the transcription factor-DNA interactions that control spatial and temporal expression of specific genes in the embryo to the systems level analysis of large regulatory networks

73. Sea Urchin Embryology Laboratory modules using sea urchin eggs to explore fertilization and development. http://www.stanford.edu/group/Urchin/

Proceed to Contents Page or Path of Development This site was funded in part by the National Science Foundation

74. Digimorph - Strongylocentrotus Purpuratus (purple Sea Urchin) Photograph and information on the purple sea urchin. http://digimorph.org/specimens/Strongylocentrotus_purpuratus/

75. Natural Perspective: Starfish (Class: Asteroidea) Photos and a brief description of starfish characteristics. http://www.perspective.com/nature/animalia/starfish.html

Page 33 of 38 Natural Perspective The Animal Kingdom : Starfish ( Asteroidea (Last modified: 23 July 1997) If you've ever had the pleasure to go tide pooling then you already know that Starfish are the most popular creatures there especially among the younger crowd. Tide pool excursions are a wonderful experience: the sound of surf accompanied by the refreshing sea breeze are reason enough to go. But the diversity of creatures living between sea and sand are the real treat on these trips. At the shoreline, a certain camaraderie pervades the atmosphere. Strangers approach one another to share information about interesting finds; families with younger children ask: "Have you seen any starfish?" [like the Pink Star Pisaster brevenspinus ) to your right]; students follow teachers who are thoroughly enchanted by the tide pool ecosystem; and perfect strangers who may never meet again form close friendships while wandering in search of another unusual living creature in the small pools formed by the receding tide. Starfish may well be the most unusual well-known creature. They have no front or back: they can move in any direction without turning. Rather than using muscles to move their hundreds of tiny legs, starfish use a complex hydraulic system to move around or cling to rocks. The intake valve for this system is generally located on the top of the Starfish, just off center, as can be seen clearly on the

76. Creature Data A photograph and brief description of the sea star, Pteraster. http://www3.bc.sympatico.ca/kerryw/creature/slime.htm

Slime star (or cushion star) Latin Name: Pteraster tesselatus Geographic Range: Range is from Japan through the Bering sea to California SCUBA Divers Info: If you look at the shape of this star you shaould have no trouble identifying it. It has short fat arms, no spines and an opening top dead center. Colours can vary drastically from bright orange with no markings to white with grey marking. If handled it exudes a thick slime and thus the name. Beachwalkers Info: This animal does not inhabit the intertidal zone so you are very unlikely to find it beachwalking or tidepooling. Echinoderm

77. Amphiop_thromb Taxonomy and photograph of this brittlestar. http://www.sms.si.edu/irlspec/Amphiop_thromb.htm

Back to Animals Back to Echinodermata ... Back to Completed Reports List Species Name: Amphioplus thrombodes Common Name: (None) I. TAXONOMY Kingdom Phylum/Division: Class: Order: Family: Genus: Animalia Echinodermata Stelleroidea Ophiurida Amphiuridae Amphioplus Amphioplus thrombodes , a brittlestar that commonly inhabits seagrass beds. Photo by J. Miller, courtesy of D. Pawson. Used with permission. Species Name: Amphioplus thrombodes H.L. Clark, 1918 Common Name: None Other Taxonomic Groupings: Subclass : Ophiuroidea Suborder : Gnathophiurina Synonymy: None

78. Amphiod_pulchel Taxonomy and photographs of this brittlestar. http://www.sms.si.edu/irlspec/Amphiod_pulchel.htm

Back to Animals Back to Echinodermata ... Back to Completed Reports List Species Name: Amphiodia pulchella Common Name: (None) I. TAXONOMY Kingdom Phylum/Division: Class: Order: Family: Genus: Animalia Echinodermata Stelleroidea Ophiurida Amphiuridae Amphiodia The brittlestar, Amphiodia pulchella . Photo by J. Miller, courtesy of D. Pawson, NMNH. Used with permission. Close-up of the disks of 2 Amphiodia pulchella . Photo by J. Miller, courtesy of D. Pawson, NMNH. Used with permission. Species Name: Amphiodia pulchella (Lyman, 1869) Common Name: None Other Taxonomic Groupings: Subclass : Ophiuroidea Suborder : Gnathophiurina Synonymy: Amphiura pulchella

79. Asteroidea Introduction, characteristics, phylogenetic relationships and fossil record of the sea stars and starfishes, from the Tree of Life Web Project. http://tolweb.org/Asteroidea/

Complete Containing Groups Echinodermata Deuterostomia Bilateria Animals ... Life on Earth Other Echinodermata Crinoidea Asteroidea Somasteroidea Holothuroidea Asteroidea Sea stars and starfishes Emily Knott This tree diagram shows the relationships between several groups of organisms. The root of the current tree connects the organisms featured in this tree to their containing group and the rest of the Tree of Life. The basal branching point in the tree represents the ancestor of the other groups in the tree. This ancestor diversified over time into several descendent subgroups, which are represented as internal nodes and terminal taxa to the right. You can click on the root to travel down the Tree of Life all the way to the root of all Life, and you can click on the names of descendent subgroups to travel up the Tree of Life all the way to individual species. For more information on ToL tree formatting, please see Interpreting the Tree or Classification . To learn more about phylogenetic trees, please visit our Phylogenetic Biology pages.

80. Comatulid Crinoid (feather Star) Creatures Gallery Spectacular photographs and a brief article about modern crinoids. http://divegallery.com/crinoids.htm

T his section is about comatulid crinoids and the commensal creatures that rely on them for food and shelter. Select any picture for a larger view and description. Crinoids Strictly speaking the creatures featured here are comatulids, members of the Class Crinoidea, along with sea lilies (similar to comatulids but with long stalks). Collectively, comatulid crinoids and sea lilies are referred to as crinoids, since they are both members of the Class Crinoidea. Here, as in the somewhat non-scientific SCUBA diver community, comatulids are most frequently labeled simply as crinoids or "feather stars". For complete, detailed scientific information on comatulid as well as stalked crinoids, visit Charles Messing's Crinoid Pages Crinoids are usually admired by divers for their bright colors, but few pause to look closely enough to see they are host to a number of tiny commensal animals, such as shrimp, clingfish, and squat lobsters. The ability of these creatures to master the art of disguise is amazing. Personally, I enjoy the tiny creatures of the reef more than the larger, pelagic animals. From a photographer's viewpoint, these tiny creatures are often better film subjects. Though photographing many of these tiny commensals on a crinoid is like chasing a squirrel around a tree, the results are very rewarding. Often the macro photograph reveals much more detail than may be seen with the naked eye.

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