Strongylocentrotidae

Strongylocentrotidae
red sea urchin (Mesocentrotus franciscanus)
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Subclass:	Euechinoidea
Superorder:	Echinacea
Order:	Echinoida
Family:	Strongylocentrotidae
Genera
Hemicentrotus Mesocentrotus Pseudocentrotus Strongylocentrotus

The Strongylocentrotidae are a family of sea urchins in the order Echinoida.

Genera

• genus Hemicentrotus Mortensen, 1942
  • Hemicentrotus pulcherrimus (A. Agassiz, 1863)
• genus Mesocentrotus Tatarenko & Poltaraus, 1993
  • Mesocentrotus franciscanus (A. Agassiz, 1863)
  • Mesocentrotus nudus (A. Agassiz, 1863)
• genus Pseudocentrotus Mortensen, 1903b
  • Pseudocentrotus depressus (A. Agassiz, 1863)
  • Pseudocentrotus stenoporus Nisiyama, 1966 †
• genus Strongylocentrotus Brandt, 1835
  • Strongylocentrotus antiquus Philip, 1965 †
  • Strongylocentrotus djakonovi Baranova, 1957
  • Strongylocentrotus droebachiensis (O.F. Müller, 1776)
  • Strongylocentrotus fragilis Jackson, 1912
  • Strongylocentrotus intermedius (A. Agassiz, 1863)
  • Strongylocentrotus magistrus Nisiyama, 1966 †
  • Strongylocentrotus octoporus Nisiyama, 1966 †
  • Strongylocentrotus pallidus (Sars G.O., 1871)
  • Strongylocentrotus polyacanthus A. Agassiz & H.L. Clark, 1907
  • Strongylocentrotus polyacathus A. Agassiz & H.L. Clark, 1907
  • Strongylocentrotus pulchellus A. Agassiz & H.L. Clark, 1907
  • Strongylocentrotus purpuratus (Stimpson, 1857)

• 
  Allocentrotus fragilis (pink) and Strongylocentrotus pallidus (white).
• 
  Mesocentrotus franciscanus
• 
  Strongylocentrotus purpuratus
• 
  Mesocentrotus nudus