WoRMS name details
Echinocidaris (Tetrapygus) L. Agassiz, 1841
568107 (urn:lsid:marinespecies.org:taxname:568107)
unaccepted > junior subjective synonym (Tetrapygus was placed in the synonym of Arbacia by Courville et al. (2023: p. 259))
Subgenus
Echinocidaris Des Moulins, 1835 accepted as Arbacia Gray, 1835
- Species Echinocidaris (Tetrapygus) aequituberculatus (Blainville, 1825) accepted as Arbacia lixula (Linnaeus, 1758) (subjective junior synonym)
- Species Echinocidaris (Tetrapygus) grandinosa (Valenciennes, 1846) accepted as Arbacia lixula (Linnaeus, 1758) (subjective junior synonym)
- Species Echinocidaris (Tetrapygus) pustulosa (Leske, 1778) accepted as Arbacia lixula (Linnaeus, 1758) (subjective junior synonym)
marine, brackish, fresh, terrestrial
recent only
(of Tetrapygus L. Agassiz, 1841) Agassiz, L. 1841. Preface to Valentin's Anatomie du genre Echinus. Neuchâtel. 10p., available online at https://www.biodiversitylibrary.org/page/1395566
page(s): vii; note: no type-species designated [details]
page(s): vii; note: no type-species designated [details]
Kroh, A.; Mooi, R. (2025). World Echinoidea Database. Echinocidaris (Tetrapygus) L. Agassiz, 1841. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=568107 on 2025-04-06
Date
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Nomenclature
original description
(of Tetrapygus L. Agassiz, 1841) Agassiz, L. 1841. Preface to Valentin's Anatomie du genre Echinus. Neuchâtel. 10p., available online at https://www.biodiversitylibrary.org/page/1395566
page(s): vii; note: no type-species designated [details]
page(s): vii; note: no type-species designated [details]
Taxonomy
status source
Courville, E., Poulin, E., Saucede, T., Mooi, R., Lessios, H., Salinas, A. M. & Diaz, A. (2023). Taxonomic reassessment of Tetrapygus niger (Arbacioida, Echinoidea): molecular and morphological evidence support its placement in Arbacia. <em>Zootaxa.</em> 5375(2): 249-261., available online at https://doi.org/10.11646/zootaxa.5375.2.6 [details] Available for editors 
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