Echinarachnius

Echinarachnius is a genus of sand dollars, belonging to the family Echinarachniidae . [1]

Echinarachnius
Echnarachnius parma
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Superorder: Gnathostomata
Order: Clypeasteroida
Family: Echinarachniidae
Genus: Echinarachnius
Gray, 1825
Synonyms
  • Echinarachinus (misspelling)
  • Echinarachnius (Echinarachnius) Gray, 1825 (subgeneric subdivision not accepted by scientific community)
  • Phelsumaster Lambert & Thiéry, 1914 (objective junior synonym)
  • Phelsumia Pomel, 1883 (junior homonym of Phelsumia Gray, 1840 (Reptilia))

Species of Echinarachnius have been around since the Pliocene epoch.

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

References
  1. Kroh, A.; Mooi, R. (2020). World Echinoidea Database. Echinarachnius Gray, 1825. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=158061 on 2020-12-31


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