The Parechinidae are a family of sea urchins in the class Echinoidea.

Parechinidae
Paracentrotus lividus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Order: Camarodonta
Infraorder: Echinidea
Family: Parechinidae
Mortensen, 1903b [1]
Genera

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Characteristics

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All camarodonts have imperforate tubercles and compound ambulacral plates. In addition, the characteristics of the parechinids include the interambulacral plates being densely covered with tubercles with many subequal tubercles, and the buccal notches being insignificant in size. The globiferous pedicellariae between the spines have widely open blades each with many lateral teeth.[2]

Genera

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Image Genus Species
  Loxechinus Desor, 1856
  Paracentrotus Mortensen, 1903b
  Parechinus Mortensen, 1903b
  Psammechinus L. Agassiz & Desor, 1846 [1]


Fossils

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References

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  1. ^ a b Parechinidae World Register of Marine Species. Retrieved 2011-08-25.
  2. ^ The Echinoid Directory The Natural History Museum. Retrieved 2011-08-25.