WoRMS taxon details

Checked: verified by a taxonomic editorHyocrinus Thomson, 1876

340805  (urn:lsid:marinespecies.org:taxname:340805)

accepted
Genus
marine
Thomson CW (1876) Notice of new living crinoids belonging to the Apiocrinidae. Journal of the Linnean Society of London, Zoology 13:47–55. [Entire volume published 1878; pages 47-109 published 15 Dec 1876] [details]   
Messing, C. (2013). Hyocrinus Thomson, 1876. In: Messing, C. (2017). World List of Crinoidea. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=340805 on 2017-12-15

Date
action
by
2008-03-19 10:57:44Z
created
2008-03-20 15:57:37Z
checked
2013-01-01 17:25:02Z
changed

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original description Thomson CW (1876) Notice of new living crinoids belonging to the Apiocrinidae. Journal of the Linnean Society of London, Zoology 13:47–55. [Entire volume published 1878; pages 47-109 published 15 Dec 1876] [details]   

basis of record Hess H. (2011). Hyocrinida. In: Hess H, Messing CG, Ausich WI (Eds.), Treatise on Invertebrate Paleontology, Part T, Echinodermata 2 Revised, Crinoidea, vol. 3. University of Kansas Press, Lawrence, Kansas. 172–179. [details]   

additional source Check list of Antarctic and Subantarctic Crinoidea by Marc Eleaume. (look up in IMIS[details]   

additional source  (ofChecked: verified by a taxonomic editorHyocrinus (Hyocrinus) Mironov & Sorokina, 1998) Check list of Antarctic and Subantarctic Crinoidea by Marc Eleaume. (look up in IMIS[details]   

basis of record  (ofChecked: verified by a taxonomic editorHyocrinus (Hyocrinus) Mironov & Sorokina, 1998) Mironov, A. N. & Sorokina O.A. (1998). Sea lilies of the order Hyocrinida (Echinodermata, Crinoidea). Zoologicheskie Issledovania, Moscow, 2, 1–117 (in Russian). [details]   
From editor or global species database
Checked: verified by a taxonomic editorDiagnosis Hyocrinidae with basals 3 or fused, forming a circlet without distinct sutures. Width of distal radial articular facet 33 to 44 percent of upper width of radial. No lateral spines or flattened projections on proximal brachials and pinnulars. Second and third nonmuscular articulations between brachials 3-4 and 5-6. First pinnule typically on brachial 6, rarely on 5. Successive series of 2-3 brachials united by synostosis in mid-arm, never successive muscular articulations. Expansion of genital pinnules with one row of H-shaped plates, but shape of cover plates very variable and useful at species level only (Roux, 2004, fig. 7). Cover plates consisting of 2-3 pairs corresponding to each pinnular. Tegmen typically low, sometimes inflated. Oral plates typically large, forming high oral cone where tegmen low. Anal cone low. Columnal symplexies with 6-10 crenular units of one crenula each, or more in larger species such as H. biscoitoi (number of crenular units and crenulae unknown in H. giganteus).  [details]