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Life-forms

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: Euechinoidea
Superordo: Atelostomata
Ordo: Spatangoida
Subordo: Holasterina

Familia: Pourtalesiidae
Genus: Pourtalesia
Species (11): P. alcocki – P. aurorae – P. debilis – P. heptneri – P. hispida – P. jeffreysi – P. laguncula – P. miranda – P. tanneri – P. thomsoni – P. vinogradovae
Name

Pourtalesia Agassiz, 1869

References

Thomson, C.W. 1872. On the Echinidea of the 'Porcupine' Deep-Sea Dredging-Expeditions. Proceedings of the Royal Society of London. 20(137): 491–497. BHL. Reference page. [as Pourtalesia p. 495–496]

Links

Pourtalesia in the World Register of Marine Species

Pourtalesia is a genus of the family Pourtalesiidae which belongs to the irregular (bilaterally symmetrical) sea urchins. The animals measure 5–6 cm in length and live in the abyssal zone of the Atlantic, Pacific, Indopacific and Antarctic Oceans where they have been found in more than 3,000 m depth. The mouth opening of these animals is located anteriorly and the lantern of Aristotle is missing as typically for holasteroid sea urchins.[1]
Species

Currently, 11 species of Pourtalesia are recognized.[2]

Pourtalesia alcocki Koehler, 1914
Pourtalesia aurorae Koehler, 1926
Pourtalesia debilis Koehler, 1926
Pourtalesia heptneri Mironov, 1978
Pourtalesia hispida A. Agassiz, 1897
Pourtalesia jeffreysi Thomson, 1873
Pourtalesia laguncula A. Agassiz, 1879
Pourtalesia miranda A. Agassiz, 1869
Pourtalesia tanneri A. Agassiz, 1898
Pourtalesia thomsoni Mironov, 1976
Pourtalesia vinogradovae Mironov, 1995

References

Schultz, Heinke A G (2017). Handbook of Zoology. Echinoidea: with bilateral symmetry. Irregularia. Walter de Gruyter GmbH & Co KG. ISBN 9783110368536.
"WoRMS - World Register of Marine Species - Pourtalesia A. Agassiz, 1869".

Echinodermata Images

Biology Encyclopedia

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