Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Echinodermata
Subphylum: Eleutherozoa
Superclassis: Cryptosyringida
Classis: Echinoidea
Subclassis: Perischoechinoidea
Ordo: Cidaroida
Familia: Cidaridae
Genus: Eucidaris
Species: E. australiae – †E. coralloides – E. galapagensis – E. metularia – †E. strobilata – †E. strombilata – E. thouarsii – E. tribuloides
Name
Eucidaris Pomel, 1883
Synonymy
Cidaris (Eucidaris) Pomel, 1883 (original rank)
References
Primary references
Pomel, A.N. 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. Alger: A. Jourdan. 131 pp. BHL Reference page.
[original description of Cidaris (Eucidaris): p. 109]
Links
Eucidaris in the World Register of Marine Species
BHL bibliography
Eucidaris – Taxon details on Encyclopedia of Life (EOL).
Global Biodiversity Information Facility. 2019. GBIF Backbone Taxonomy. Checklist dataset. Taxon: Eucidaris.
ION
Species-ID
Eucidaris is a genus of cidaroid sea urchins known as slate pencil urchins (named after slate pencil). They are characterised by a moderately thick test, a usually monocyclic apical disc, perforate and non-crenulate tubercles and nearly straight ambulacra with horizontal pore pairs. The primary spines are few and widely spaced, stout with blunt flat tips and beaded ornamentation and the secondary spines are short and apressed. They originated in the Miocene and extant members of the genus are found in the tropical Indo-Pacific Ocean, East Pacific, Atlantic Ocean and Caribbean Sea.[2]
Species
The World Register of Marine Species lists the following species:[1]
Eucidaris australiae Mortensen, 1950
† Eucidaris coralloides Fell, 1954
Eucidaris galapagensis Döderlein, 1887
Eucidaris metularia (Lamarck, 1816)
† Eucidaris strobilata Fell, 1954
Eucidaris thouarsii (Agassiz & Desor, 1846)
Eucidaris tribuloides (Lamarck, 1816)
Species brought into synonymy
Eucidaris clavata Mortensen, 1928: synonym of Eucidaris tribuloides (Lamarck, 1816)
References
Wikimedia Commons has media related to Eucidaris.
Kroh, Andreas (2012). "Eucidaris Pomel, 1883". WoRMS. World Register of Marine Species. Retrieved 2013-03-22.
"Eucidaris Pomel, 1883". The Echinoid Directory. The Natural History Museum. Retrieved 2013-03-22.
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
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