Sea Urchin Shell (Stephanocyathus seguenzae) – Natural Mini Urchin Skeleton (2–3 cm)
Stephanocyathus Sea Urchin | Delicate Marine Specimen | Cabinet of Curiosities & Educational Display
$8.00
Description
What’s Included
Quantity: 1 natural sea urchin shell
Size Range: Approx. 2–3 cm (≈ 0.8–1.2 inches)
Condition: Cleaned, dried, natural skeleton (no spines)
Shell Type
Common Name: Sea Urchin Shell
Scientific Name: Stephanocyathus seguenzae
Class: Echinoidea
Origin
Stephanocyathus seguenzae is a small marine echinoid found in deeper ocean environments. After the natural loss of spines, the remaining test (shell) reveals a beautifully patterned skeletal structure valued by collectors and educators.
Appearance & Natural Features
These sea urchin shells are appreciated for:
Intricate geometric plate patterns
Lightweight yet rigid calcium carbonate structure
Natural ivory to pale cream coloration
Compact size ideal for close-up display
Each specimen is naturally unique in symmetry, tone, and surface texture.
Uses & Applications
Perfect for:
Cabinet of curiosities collections
Marine biology and educational displays
Coastal and ocean-themed décor
Jewelry, resin art, and fine craft projects
Photography props and specimen flat lays
Due to its small size, this shell works best in group displays or shadow boxes.
Natural Product Disclaimer
Photos show representative examples, not the exact shell
Natural variation in size, color, and surface texture is expected
Minor imperfections are normal for genuine marine specimens
Bulk & Wholesale Orders
We supply natural shells and marine specimens for:
Shell shops & collectors
Museums & educational institutions
Artists & craft brands
Coastal décor retailers
📧 Email: cyan@seashell-supply.com
💬 Or simply send us a message to discuss your needs.
Every seashell is a gift from the ocean, and I pack each one with the care it deserves, ensuring its safe journey to you.
Preparation Time: I will carefully wrap your seashells in recycled paper and twine within 1-3 business days, making it feel like a personal gift from the sea.
Shipping Method: I use reliable standard shipping and will provide you with a tracking number, so you can follow your shell’s journey.
International Orders: For shells traveling across oceans, please allow a little extra time. Sometimes customs checks can extend their journey.
The ocean never creates two identical shells, making the one you receive truly one-of-a-kind.
Damaged in Transit: If your shell is damaged during its journey, please contact me within 24 hours of receipt with a photo. I will immediately send a replacement or issue a full refund.
Not as Described: I do my best to represent each shell accurately through photos and descriptions. If you feel your shell is significantly different from what was described, please contact me within 7 days, and we will find a thoughtful solution.
A Note on “Change of Mind”: As each shell is a natural, unique item, I cannot accept returns or exchanges due to a “change of mind.” Please review the photos and dimensions carefully to ensure it’s the perfect “ocean companion” for you.
We are deeply committed to sustainable and ethical practices. All our shells are sourced responsibly—never from live-shelled creatures. We support marine conservation efforts and maintain transparency about our sourcing practices.
Sea urchin shells, known as “tests,” are made of hundreds of interlocking plates arranged in precise geometric patterns—one of nature’s most efficient structural designs.
Even without spines, these tests remain strong and lightweight, making them ideal specimens for scientific study and decorative use.