Hemicentrotus

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Hemicentrotus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Order: Camarodonta
Family: Strongylocentrotidae
Genus: Hemicentrotus
Mortensen, 1942
Species:
H. pulcherrimus
Binomial name
Hemicentrotus pulcherrimus
Synonyms
  • Discaster bernardi Michelin, M.S.
  • Holopneustes complanatus Herklots, M.S.
  • Psammechinus pulcherrimus A. Agassiz, 1864
  • Sphærechinus pulcherrimus (A. Agassiz, 1864)
  • Strongylocentrotus pulcherrimus (A. Agassiz, 1863)

Hemicentrotus pulcherrimus is a

Fukui, in the Sea of Japan.[3][4]

Description

This sea urchin has a thick test and a large number of tiny, fine, sharp spines. The tubercles are small and closely packed, arranged in slightly zig-zag horizontal rows, with four to eight tubercles on each inter-ambulacral plate and three on each ambulacral plate. The pores are arranged in diagonal lines of four, with the rows being separated by small tubercles. The colour of this sea urchin is pale greenish-olive above, and brownish-green below.[5]

Distribution

Hemicentrotus pulcherrimus is native to tropical waters in the western Central Pacific Ocean, the waters around Palau and the South China Sea. It occurs down to depths of about 45 m (150 ft),[6] but it is mostly found on boulders in the intertidal zone and in the shallow subtidal zone at depths of less than 2 m (7 ft).[7]

Ecology

The species is herbivorous, grazing on marine algae.

coralline algae at other times of year when the red alga is scarce.[7]

As is the case with other sea urchins, H. pulcherrimus liberates eggs and sperm into the water column and the echinopluteus

Hizikia fusiformis which grows around the coasts of Japan.[4]
: 462 

Uses

In Japan, H. pulcherrimus has been harvested commercially as a seafood since the 1600s. It is eaten after being preserved with alcohol or brine, since it has a bitter taste when raw.[4]: 459 

References

  1. ^ Kroh, Andreas (2018). "Hemicentrotus pulcherrimus (A. Agassiz, 1864)". WoRMS. World Register of Marine Species. Retrieved 17 March 2018.
  2. PMID 12823452
    .
  3. doi:10.1016/S0167-9309(01)80022-3
    .
  4. ^
    ISBN 9780080465586
    .
  5. ^ "Hemicentrotus pulcherrimus". Proceedings of the Academy of Natural Sciences of Philadelphia (V.15). BHL. 1863. p. 357. Retrieved 17 March 2018.
  6. ^ "Hemicentrotus pulcherrimus (Agassiz, 1863)". SeaLifeBase. Retrieved 18 March 2018.
  7. ^
    doi:10.2983/0730-8000(2006)25[1027:DOTSUH]2.0.CO;2
    .
  8. ISBN 978-81-315-0104-7.{{cite book}}: CS1 maint: multiple names: authors list (link
    )
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