Spinoloricus cinziae

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Spinoloricus cinziae
Spinoloricus.png
Scientific classification edit
Kingdom: Animalia
Phylum: Loricifera
Order: Nanaloricida
Family: Nanaloricidae
Genus: Spinoloricus
Species:
S. cinziae
Binomial name
Spinoloricus cinziae
Neves, Gambi, Danovaro & Kristensen, 2014

Spinoloricus cinziae is an animal species described in 2014 in the phylum Loricifera.[1]

It was the first described animal species that does not require oxygen at any point during its life.[2][3][4] The species, along with two other newly discovered species, Rugiloricus nov. sp. and Pliciloricus nov. sp. (all of order Nanaloricida), were found in the sediment of the anoxic L'Atalante basin of the Mediterranean Sea.[3][4]

Electron microscope images[4] show that the species' cellular innards appear to be adapted for a zero-oxygen life. Their mitochondria appear to act as hydrogenosomes, organelles which provide energy in some anaerobic single-celled creatures.[5]

At adulthood, this species is characterized by a mouth cone with eight oral ridges, a neck with eight single trichoscalids alternating with seven double trichoscalids, as well as lorical plates with spikes located at the corners.[1] More than 30 species in this group have been described.[1]

References[edit]

  1. ^ a b c Neves, Ricardo Cardoso; Gambi, Cristina; Danovaro, Roberto; Kristensen, Reinhardt Møbjerg (2014-10-02). "Spinoloricus cinziae (Phylum Loricifera), a new species from a hypersaline anoxic deep basin in the Mediterranean Sea". Systematics and Biodiversity. 12 (4): 489–502. doi:10.1080/14772000.2014.943820. ISSN 1477-2000. S2CID 84682701.
  2. ^ Jackson P. (8 April 2010). http://news.bbc.co.uk/2/hi/8609246.stm "First oxygen-free animals found". BBC News. accessed 16 April 2010.
  3. ^ a b New species 'live without oxygen', The Telegraph, April 9, 2010
  4. ^ a b c Roberto Danovaro; et al. (2010). "The first metazoa living in permanently anoxic conditions". BMC Biology. 8 (30): 30. doi:10.1186/1741-7007-8-30. PMC 2907586. PMID 20370908.
  5. ^ Multicelled Animals May Live Oxygen-Free, U.S. News & World Report, April 12, 2010