Biology:Echinocyamidae
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Short description: Family of echinoderms (sand dollars)
| Echinocyamidae | |
|---|---|
| |
| Echinocyamus pusillus | |
| Scientific classification | |
| Kingdom: | Animalia
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| Phylum: | |
| Class: | Echinoidea
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| Order: | Clypeasteroida
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| Suborder: | Scutellina
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| Infraorder: | Laganiformes
|
| Family: | Echinocyamidae Lambert & Thiéry, 1914
|
| Genera | |
| |
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.[1][2][3]
Description
They 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 adaptively in one or two single small plates
- basicoronal circlet small and unspecialized
- no food grooves
References
- ↑ "WoRMS - World Register of Marine Species - Echinocyamidae Lambert & Thiéry, 1914". http://www.marinespecies.org/aphia.php?p=taxdetails&id=510679.
- ↑ "Echinocyamidae - Natural History Museum". http://www.nhm.ac.uk/our-science/data/echinoid-directory/taxa/taxon.jsp?id=772.
- ↑ GBIF. "Echinocyamidae". https://www.gbif.org/species/5965443.
Wikidata ☰ Q15992452 entry
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