Phormosoma
Description
An echinothuriid sea urchin. Phormosoma sp., possibly P. bursarium or P. rigidum -- the former has curved aboral spines, and the ones in the images are straight, so a more likey this is P. rigidum (assuming it is a described species). Note the dark, swollen spine tips marking the poison-bearing spines. Also, hypertrophied pedicellariae around the periphery. Notice what appears to be a little holothuroid to the right.
| Item Type: | Image |
|---|---|
| Title: | Phormosoma |
| Creator(s): | Gates, A. |
| Identification: | Mooi, R. |
| Date: | 04 June 2012 |
| Time: | 19:33 |
| Copyright: | SERPENT |
| Classification: | Kingdom Animalia > Phylum Echinodermata (Echinoderms) > Class Holothuroidea (Sea Cucumbers), Kingdom Animalia > Phylum Echinodermata (Echinoderms) > Class Echinoidea (Sea Urchins, heart urchins, sand dollars) > Echinothuroidea (Sea urchins) > Echinothuriidae (Sea urchins) |
| Species: | Phormosoma |
| Behaviour: | Walking over the seabed. Seems to be followed by small holothurian. This was noted on several occasions with different specimens of Phormosoma |
| Site: | Indian > Indian Ocean > East Africa > Lavani |
| Depth (m): | 2391 |
| Countries: | East Africa > Tanzania |
| Habitat: | Benthic boundary zone |
| Substratum: | Deep-sea mud |
| Rig: | Ocean Rig Poseidon |
| Project Partners: | Statoil, Oceaneering |
| ROV: | Millenium 93 and 73 |
| Keywords: | Phormosoma Tanzania Indian Ocean Lavani |
| Deposited By: | Dr Andrew Gates |
| Deposited On: | 10 January 2013 |
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