Diadematidae

Short description: Family of sea urchins

Diadematidae

Diadema setosum in Oman.
Scientific classification
Domain:  | Eukaryota
Kingdom:  | Animalia
Phylum:  | Echinodermata
Class:  | Echinoidea
Order:  | Diadematoida
Family:  | Diadematidae
Gray, 1855 [1]

The Diadematidae are a family of sea urchins. Their tests are either rigid or flexible and their spines are long and hollow.[2]

* Astropyga Gray, 1825
* Astropyga radiata (Leske, 1778), extant
* Astropyga pulvinata (Lamarck, 1816), extant
* Astropyga magnifica (Clark, 1934), extant
* Centrostephanus Peters, 1855
* Centrostephanus asteriscus (Agassiz & Clark, 1907), extant
* Centrostephanus coronatus (Verrill, 1867), extant
* Centrostephanus fragile (Wiltshire in Wright, 1882), Santonian, Maastrichtian, Danian
* Centrostephanus longispinus (Philippi, 1845), extant
* Centrostephanus nitidus (Koehler, 1927), extant
* Centrostephanus rodgersii (Agassiz, 1863), extant[3]
* Chaetodiadema Mortensen, 1903
* Chaetodiadema granulatum (Mortensen, 1903), extant
* Chaetodiadema keiense (Mortensen, 1903), extant
* Chaetodiadema tuberculatum (Clark, 1909), extant
* Diadema Gray, 1825
* Diadema palmeri (Baker, 1967), extant
* Diadema savignyi (Audouin, 1829), extant
* Diadema setosum (Leske, 1778), extant
* Diadema antillarum (Philippi, 1845), extant
* Diadema paucispinum (Agassiz, 1863), extant
* Diadema mexicanum (Agassiz, 1863), extant
* Diadema ascensionis (Mortensen, 1909), extant
* Echinodiadema Verrill, 1867
* Echinodiadema coronata (Verrill, 1867), extant
* Echinothrix Peters, 1853
* Echinothrix calamaris (Pallas, 1774), extant
* Echinothrix diadema (Linnaeus, 1758), extant
* Eodiadema, Lower Jurassic
* Eremopyga Agassiz & Clark, 1908
* Eremopyga denudata (De Meijere, 1904), extant
* Goniodiadema Mortensen, 1939
* Goniodiadema mauritiense (Mortensen, 1939), extant
* Kamptosoma Mortensen, 1903, extant
* Palaeodiadema (Pomel, 1887), Santonian, Maastrichtian, Danian
* Pedinothuria Louis, 1897
* Pedinothuria cidaroides (Gregory, 1897), Callovian, Oxfordian

## Senses

Like other sea urchins diadematids are sensitive to touch, light, and chemicals; additionally they do have eyes (eye spots) which is in contrast to other sea urchins. Because of this they can follow a threat with their spines.[4]

## Images

* Astropyga radiata.

* Centrostephanus longispinus.

* Chaetodiadema granulatum

* Diadema setosum.

* Echinothrix calamaris.

## References

1. ↑ "Diadematidae". Integrated Taxonomic Information System. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=157867.
2. ↑ Maran, Vincent (2010-11-11). "Astropyga radiata (Leske, 1778)" (in fr). DORIS. http://doris.ffessm.fr/fiche2.asp?fiche_numero=1846.
3. ↑ "Black Sea Urchin". Museum Victoria. http://portphillipmarinelife.net.au/species/4169.
4. ↑ Knight, K. (2009). "Sea Urchins Use Whole Body As Eye". Journal of Experimental Biology 213 (2): i-ii. doi:10.1242/jeb.041715.
* Charles Q. Choi (December 28, 2009). "Body of Sea Urchin is One Big Eye". LiveScience (Press release).

Wikidata ☰ Q901480 entry

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