description Echinothrix calamaris Overview
Echinothrix calamaris, or banded hatpin urchin, is a regular sea-urchin belonging to the Diadematidae family. This extant species inhabits the Indo-Pacific region and is notable for its striking pattern of alternating dark and light spines. It’s primarily studied by marine biologists researching echinoid diversity and distribution, particularly within the warmer waters of that area.
insights Why this score
Echinothrix calamaris ranks #8 of 139 in the Sea Urchin ranking, behind Strongylocentrotus droebachiensis, ahead of Tripneustes gratilla.
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How good is Echinothrix calamaris?
Echinothrix calamaris scores 8.74/10 (Great) on Lunoo, making it a well-rated option in the Sea Urchin category.
What are the best alternatives to Echinothrix calamaris?
See our alternatives page for Echinothrix calamaris for a ranked list with scores. Top alternatives include: Diadema setosum, Diadema savignyi, Astropyga radiata.
How does Echinothrix calamaris compare to Diadema setosum?
See our detailed comparison of Echinothrix calamaris vs Diadema setosum with scores, features, and an AI-powered verdict.
Is Echinothrix calamaris worth it in 2026?
With a score of 8.74/10, Echinothrix calamaris is highly rated in Sea Urchin. See all Sea Urchin ranked.
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