description Tromikosoma hispidum Overview
Tromikosoma hispidum is a deep-sea echinothurioid sea urchin with a broad distribution in the world's deep oceans, noted for its bristly surface.
help Tromikosoma hispidum FAQ
What kind of sea urchin is Tromikosoma hispidum?
Tromikosoma hispidum is a deep-sea echinoid in the order Echinothurioida and family Echinothuriidae. The accepted taxonomic record gives the authority as A. Agassiz, 1898. [Galápagos Species Database](https://datazone.darwinfoundation.org/en/checklist/?species=14915)
How deep does Tromikosoma hispidum live?
Records in the Galápagos Species Database place it at approximately 1,820 to 2,763 meters depth. That is deep-ocean habitat, far below the shallow waters where most familiar sea urchins are observed. [Galápagos Species Database](https://datazone.darwinfoundation.org/en/checklist/?species=14915)
Why does Tromikosoma hispidum look bristly?
Its bristly appearance comes from the many spines associated with its echinothuriid body. Echinothurioids are also known for a flexible test and hollow spines, features that distinguish them from many rigid-bodied sea urchins. [Echinothurioida overview](https://en.wikipedia.org/wiki/Echinothurioida)
Where has Tromikosoma hispidum been recorded?
Eastern Pacific records include the Guadalupe Islands, Baja California, the Gulf of California, Panama, Colombia, Malpelo, Cocos, and Ecuador including the Galápagos Islands. These named localities show why the species is described as broadly distributed across deep Pacific waters. [Galápagos Species Database](https://datazone.darwinfoundation.org/en/checklist/?species=14915)
explore Explore More
Reviews & Comments
Write a Review
Be the first to review
Share your thoughts with the community and help others make better decisions.
