description Calveriosoma hystrix Overview
Calveriosoma hystrix is a marine sea urchin in the family Echinothuriidae, a group whose members have flexible tests and conspicuous spines. Thomson described the species in 1872. It is distinguished by a narrow digestive siphon that runs alongside the stomach, a structure thought to help move water between parts of the digestive tract, although its precise function is not established.
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How good is Calveriosoma hystrix?
Calveriosoma hystrix scores 6.73/10 (Fair) on Lunoo, making it rated in the Sea Urchin category. Deep-sea echinothurioid with striking spination and specialist appeal, though limited public familiarity.
What are the best alternatives to Calveriosoma hystrix?
See our alternatives page for Calveriosoma hystrix for a ranked list with scores. Top alternatives include: Phormosoma placenta, Phormosoma bursarium, Phormosoma rigidum.
How does Calveriosoma hystrix compare to Phormosoma placenta?
See our detailed comparison of Calveriosoma hystrix vs Phormosoma placenta with scores, features, and an AI-powered verdict.
Is Calveriosoma hystrix worth it in 2026?
With a score of 6.73/10, Calveriosoma hystrix is a solid option in Sea Urchin. See all Sea Urchin ranked.
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