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.
トックリブンブク属
GENUS
via GBIF
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.
== Species == Currently, 11 species of Pourtalesia are recognized. 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
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).