Echinocyamidae

Updated on Dec 20, 2024

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Kingdom Animalia Class Echinoidea Suborder Scutellina Rank Family		Phylum Echinodermata Order Clypeasteroida Infraorder Laganiformes

Similar Rotulidae, Scutellidae, Echinocyamus, Neognathostomata, Echinocyamus pusillus

Echinocyamidae is a family of sand dollars. They are found mostly off the coast of Britain and Ireland and the North Sea, with scattered populations in the tropics.

Description

The are Laganiformes with:

simple radial internal buttresses along interambulacral margins;

periproct close to peristome and opening bounded by first and second paired post-basicoronal interambulacral plates

interambulacral zones terminating adapically in one or two single small plates

basicoronal circlet small and unspecialized

no food grooves

References

Echinocyamidae Wikipedia

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