description Phormosoma bursarium Overview
Phormosoma bursarium is a deep-water echinothurioid sea urchin described by Alexander Agassiz in 1881. It has been recorded from approximately 170 to 2,340 metres, placing it across a substantial range of marine depths. The species belongs to a group commonly associated with flexible, leather-like sea urchin bodies and is relevant to zoological research on deep-sea echinoderms and Atlantic marine biodiversity.
help Phormosoma bursarium FAQ
What kind of animal is Phormosoma bursarium?
Phormosoma bursarium is a deep-water echinothurioid sea urchin. Alexander Agassiz described the species in 1881.
How deep can Phormosoma bursarium live?
Records place Phormosoma bursarium at roughly 170 to 2,340 metres below the sea surface. That range puts it in both relatively deep continental-slope waters and much deeper ocean habitats.
Why is Phormosoma bursarium described as a flexible sea urchin?
Echinothurioid sea urchins are associated with a flexible test, the internal shell made of calcium-carbonate plates. This gives them a softer, more bendable body shape than the rigid form associated with many shallow-water sea urchins.
Who named Phormosoma bursarium?
The species was described by Alexander Agassiz in 1881. Agassiz was a major nineteenth-century researcher of marine invertebrates and deep-sea life.
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