Pourtalesia

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Pourtalesia
Pourtalesia miranda

Pourtalesia miranda

Systematics
Class : Sea urchin (Echinoidea)
Subclass : Euechinoidea
Superordinate : Atelostomata
Order : Holasteroid
Family : Pourtalesiidae
Genre : Pourtalesia
Scientific name
Pourtalesia
A. Agassiz , 1869

Pourtalesia is the eponymous genus of Pourtalesia (family Pourtalesiidae ) which belongs to the irregular sea ​​urchins . The animals are bilaterally symmetrical and grow 5–6 cm long. They live in the abyssal (deep sea) of the Atlantic , Pacific , Indo-Pacific, and Arctic Oceans . The mouth opening is far in front, the lantern of Aristotle is missing as in all holasteroida .

species

11 species of the genus Pourtalesia are currently known.

Individual evidence

  1. Schultz, Heinke AG: Handbook of Zoology. Echinoidea: with bilateral symmetry. Irregularia . Walter de Gruyter GmbH & Co KG, Berlin, ISBN 3-11-036853-6 .
  2. ^ WoRMS - World Register of Marine Species - Pourtalesia A. Agassiz, 1869. Retrieved April 19, 2019 .