Notocrinus

{{Short description|Genus of crinoids}} {{Automatic taxobox | image = Notocrinus virilis (USNM 1126534) 002.jpeg | image_caption = ''Notocrinus virilis'' | display_parents = 2 | taxon = Notocrinus | authority = Mortensen, 1917<ref name=genus/> | subdivision_ranks = Species | subdivision = See text }}

'''Notocrinus''' is a genus of crinoids, which contains two species, both endemic to the seas around Antarctica.<ref name=OHara>{{cite book|author1=O'Hara, Timothy|author2=Byrne, Maria|title=Australian Echinoderms: Biology, Ecology and Evolution |url=https://books.google.com/books?id=EtkqDwAAQBAJ&pg=PA213 |year=2017 |publisher=Csiro Publishing |isbn=978-1-4863-0763-0 |pages=213–214}}</ref><ref name=WoRMS>{{cite WoRMS |author=Messing, Charles |year=2019 |title=Notocrinidae Mortensen, 1918 |id=173883 |accessdate=21 March 2019}}</ref>

==Description== Members of this genus have five arms which subdivide near the base giving them ten arms in total. The arms can reach {{convert|100|mm|in|0|abbr=on}} in length, and there are thirty to sixty or more cirri. The gonads are located on the arms, and the embryos are brooded in cavities in the arms. The aboral surface (underside) of the disc has five deep radial pits arranged in a star-shape.<ref name=OHara/>

==Species== The World Register of Marine Species lists the following species in this genus:<ref name=genus>{{cite WoRMS |author=Messing, Charles |year=2019 |title=''Notocrinus'' Mortensen, 1917 |id=173884 |accessdate=21 March 2019}}</ref>

* ''Notocrinus mortenseni'' <small> John, 1938</small> * ''Notocrinus virilis'' <small> Mortensen, 1917</small>

==References== {{Reflist}}

Category:Comatulida Category:Crinoid genera