WoRMS name details
Gephyrocrinus messingi Roux & Lambert, 2011
731436 (urn:lsid:marinespecies.org:taxname:731436)
unaccepted (basionym)
Species
marine, brackish, fresh, terrestrial
Roux M, Lambert P (2011) Two new species of stalked crinoids from the northeastern Pacific in the genera <i>Gephyrocrinus</i> and <i>Ptilocrinus</i> (Echinodermata, Crinoidea, Hyocrinidae). Effects of ontogeny and variability on hyocrinid taxonomy. <i>Zootaxa</i> 2825:1–54. [details]
WoRMS (2025). Gephyrocrinus messingi Roux & Lambert, 2011. Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=731436 on 2025-05-13
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Nomenclature
original description
Roux M, Lambert P (2011) Two new species of stalked crinoids from the northeastern Pacific in the genera <i>Gephyrocrinus</i> and <i>Ptilocrinus</i> (Echinodermata, Crinoidea, Hyocrinidae). Effects of ontogeny and variability on hyocrinid taxonomy. <i>Zootaxa</i> 2825:1–54. [details]
From editor or global species database
Diagnosis Gephyrocrinus with normal proximal arm pattern of 1+2 3 4 5+6 7+8 9+10 (80%) and first pinnule on Br4; beyond Br4, free brachials more frequently at Br13 (52%), Br16 (64%) and Br19 (64%); three or more successive muscular articulations appearing rarely after Br15, more frequently after Br19; pattern very variable beyond Br25, from series of >15 successive muscular articulations (sometime reaching arm tip) to exceptionally long series of successive brachial pairs. Brachial constriction between two muscular articulations more marked in juveniles than in adults. Base of genital pinnules with numerous small polygonal lateral plates not in rows; shape (frequently irregularly sub-quadrangular) and size of lateral plates variable on two sides of genital inflation, frequently present in middle pinnule at least on one side; cover plates rounded to sharply lanceolate. Tegmen with verrucose ornamentation, variously inflated, frequently globular, relative inter-ray width (Wr/Wb) usually >2.0. Anal sac bottle-shaped, slightly shorter or taller than oral cone; orals smooth with rounded top. Conical aboral cup with conspicuous ornamentation of radial ribs and transverse ridges. Basals fused; aboral border of basal ring flanged. Columnal symplexies with 6–7 crenular units of 1–2 short crenulae (up to 3 in largest specimens). [details]
