The Blade-tipped Tiara-urchin, Rough-spined Urchin, scientifically known as Chondrocidaris gigantea, is a fascinating species of sea urchin found in the depths of the ocean. Its unique characteristics and distribution make it a captivating subject of study for marine biologists and enthusiasts alike.
Description & Characteristics
Chondrocidaris gigantea is a distinctive sea urchin with a robust, spherical test (shell) and a remarkable array of spines. Its primary spines are long, thick, and sharp, lending to its common name “Rough-spined Urchin.” These spines, tipped with a blade-like structure, are highly effective in defense against predators. While specific dimensions vary, Chondrocidaris gigantea can grow to a considerable size, exceeding 10 centimeters in diameter, making it one of the larger species of sea urchins.
Habitat and Occurrence
The Blade-tipped Tiara-urchin, Rough-spined Urchin thrives in the depths of the ocean, typically residing between 100 and 500 meters below the surface. Its preferred habitat is the neritic zone, the region of the ocean extending from the shoreline to the edge of the continental shelf, making it a prevalent presence in these aquatic ecosystems.
Taxonomy
The species Chondrocidaris gigantea belongs to the Class: Echinoidea, Order: Cidaroida, and Family: Cidaridae. This classification places it within the broader group of echinoderms, which encompasses a diverse array of marine invertebrates such as starfish, brittle stars, and sea cucumbers. The family Cidaridae, to which Chondrocidaris gigantea belongs, is specifically characterized by the presence of long, primary spines that provide defense against predators.
Feeding
While reliable information regarding the specific diet of Chondrocidaris gigantea is limited, it is generally considered to be an omnivore. This indicates that its diet likely includes a combination of both plant and animal matter. Further research is needed to understand the precise composition of its food sources within its deep-sea habitat.
Image References