Clypeaster rosaceus (San Salvador Island, Bahamas) 3
![Image de Clypeaster rosaceus (Linnaeus 1758)](https://content.eol.org/data/media/e3/81/0d/509.c5e17e991fd0b701af09afdfec240cc0.580x360.jpg)
Description :
Summary.mw-parser-output table.commons-file-information-table,.mw-parser-output.fileinfotpl-type-information{border:1px solid #a2a9b1;background-color:#f8f9fa;padding:5px;font-size:95%;border-spacing:2px;box-sizing:border-box;margin:0;width:100%}.mw-parser-output table.commons-file-information-table>tbody>tr,.mw-parser-output.fileinfotpl-type-information>tbody>tr{vertical-align:top}.mw-parser-output table.commons-file-information-table>tbody>tr>td,.mw-parser-output table.commons-file-information-table>tbody>tr>th,.mw-parser-output.fileinfotpl-type-information>tbody>tr>td,.mw-parser-output.fileinfotpl-type-information>tbody>tr>th{padding:4px}.mw-parser-output.fileinfo-paramfield{background:#ccf;text-align:right;padding-right:0.4em;width:15%;font-weight:bold}.mw-parser-output.commons-file-information-table+table.commons-file-information-table,.mw-parser-output.commons-file-information-table+div.commons-file-information-table>table{border-top:0;padding-top:0;margin-top:-8px}@media only screen and (max-width:719px){.mw-parser-output table.commons-file-information-table,.mw-parser-output.commons-file-information-table.fileinfotpl-type-information{border-spacing:0;padding:0;word-break:break-word;width:100%!important}.mw-parser-output.commons-file-information-table>tbody,.mw-parser-output.fileinfotpl-type-information>tbody{display:block}.mw-parser-output.commons-file-information-table>tbody>tr>td,.mw-parser-output.commons-file-information-table>tbody>tr>th,.mw-parser-output.fileinfotpl-type-information>tbody>tr>td,.mw-parser-output.fileinfotpl-type-information>tbody>tr>th{padding:0.2em 0.4em;text-align:left;text-align:start}.mw-parser-output.commons-file-information-table>tbody>tr,.mw-parser-output.fileinfotpl-type-information>tbody>tr{display:flex;flex-direction:column}.mw-parser-output.commons-file-information-table+table.commons-file-information-table,.mw-parser-output.commons-file-information-table+div.commons-file-information-table>table{margin-top:-1px}.mw-parser-output.fileinfo-paramfield{box-sizing:border-box;flex:1 0 100%;width:100%}} Description: Clypeaster rosaceus Lamarck, 1816 - washed ashore onto a rocky shoreline. Irregular echinoids have somewhat globular skeletons (tests) composed of interlocking calcite plates and covered in short, fur-like spines. The skeleton is bilaterally symmetrical, not pentaradially symmetrical as in the sea urchins. The upper side of the skeleton has the pattern of a 5-petaled star - each petal is an ambulacrum. The mouth and anus are at opposite ends of the long axis of the skeleton. Heart urchins are infaunal deposit feeders - they consume bulk sediments, digest any organic matter mixed in, and excrete large quantities of sediments. In the specimen shown above, decay has resulted in the spines being detached - the small pustules are spine attachment bases. Locality: beach landward from Snapshot Reef, Fernandez Bay, western San Salvador Island, eastern Bahamas. Date: 25 March 2007, 16:11. Source: Meoma ventricosa (red heart urchins) (San Salvador Island, Bahamas) 3. Author: James St. John.
Inclus dans les pages suivantes :
- Life
- Cellular (Organismes cellulaires)
- Eukaryota (eucaryotes)
- Opisthokonta
- Metazoa (animaux)
- Bilateria
- Deuterostomia (Deutérostomes)
- Echinodermata
- Echinozoa
- Echinoidea
- Euechinoidea
- Irregularia
- Neognathostomata
- Clypeasteroida
- Clypeasterina
- Clypeasteridae
- Clypeaster
- Clypeaster rosaceus
Cette image ne figure dans aucune collection.
Informations sur la provenance
- licence
- cc-by-3.0
- droit d’auteur
- James St. John
- créateur
- James St. John
- source
- Flickr user ID jsjgeology
- original
- fichier de média d’origine
- visiter la source
- site partenaire
- Wikimedia Commons
- ID