Echinarachnius

Echinarachnius is a genus of sand dollars, belonging to the family Echinarachniidae.

Species of Echinarachnius have been around since the Pliocene epoch.

Species

• †Echinarachnius alaskensis <small>Durham, 1957</small>
• Echinarachnius asiaticus <small>Michelin, 1859</small>
• †Echinarachnius humilis <small>Nisiyama, 1968</small>
• †Echinarachnius kewi <small>Grant & Eaton in Eaton, Grant & Allen, 1941</small>
• †Echinarachnius naganoensis <small>Morishita, 1953</small>
• Echinarachnius parma <small>(Lamarck, 1816)</small>
• †Echinarachnius rumoensis <small>Hayasaka & Shibata, 1952</small>
• †Echinarachnius subtumidus <small>Nisiyama & Hashimoto, 1950</small>

References

External links

• J.E. (1825). An attempt to divide the Echinida, or Sea Eggs, into natural families. Annals of Philosophy, new series. 10:423-431
• Pomel, A. 1883. Classification méthodique et Genera des Échinides vivantes et fossiles. Thèses présentées à la Faculté des Sciences de Paris pour obtenir le Grade de Docteur ès Sciences Naturelles 503, Adolphe Jourdan, Alger, 131 pp
• Neave, Sheffield Airey. (1939-1996). Nomenclator Zoologicus vol. 1-10 Online. [developed by uBio, hosted online at MBLWHOI Library.