description Arachnoides placenta Overview
Arachnoides placenta is a flat, disk-like irregular sea urchin in the family Arachnoididae, primarily inhabiting the shallow coastal waters of the Indo-Pacific.
insights Ranking position
Arachnoides placenta ranks #93 of 405 in the Sea Urchin ranking, behind Holopneustes inflatus, ahead of Centrostephanus longispinus.
help Arachnoides placenta FAQ
How good is Arachnoides placenta?
Arachnoides placenta scores 7.62/10 (Good) on Lunoo, making it a well-rated option in the Sea Urchin category. Indo-Pacific sand dollar with memorable form and broad distribution, strong natural-history and collection profile.
What are the best alternatives to Arachnoides placenta?
See our alternatives page for Arachnoides placenta for a ranked list with scores. Top alternatives include: Clypeaster humilis, Diadema setosum, Echinothrix calamaris.
How does Arachnoides placenta compare to Clypeaster humilis?
See our detailed comparison of Arachnoides placenta vs Clypeaster humilis with scores, features, and an AI-powered verdict.
Is Arachnoides placenta worth it in 2026?
With a score of 7.62/10, Arachnoides placenta is a solid option in Sea Urchin. See all Sea Urchin ranked.
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