WoRMS taxon details

Feracrinus koslowi Améziane & Roux, 2011

732515  (urn:lsid:marinespecies.org:taxname:732515)

accepted
Species
marine, brackish, fresh, terrestrial
Ameziane, N.; Roux, M. (2010). Stalked crinoids from Tasmanian seamounts. Part 1: Hyocrinidae. <em>Journal of Natural History.</em> 45(3-4): 137-170., available online at https://doi.org/10.1080/00222933.2010.520825 [details]   
Distribution SW Pacific, off Tasmania, depth 1,310-1,815 m.  
Distribution SW Pacific, off Tasmania, depth 1,310-1,815 m. [details]
WoRMS (2018). Feracrinus koslowi Améziane & Roux, 2011. Accessed at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=732515 on 2018-12-18
Date
action
by
2013-06-14 19:26:54Z
created

Creative Commons License The webpage text is licensed under a Creative Commons Attribution 4.0 License


original description Ameziane, N.; Roux, M. (2010). Stalked crinoids from Tasmanian seamounts. Part 1: Hyocrinidae. <em>Journal of Natural History.</em> 45(3-4): 137-170., available online at https://doi.org/10.1080/00222933.2010.520825 [details]   
 
 Present  Inaccurate  Introduced: alien  Containing type locality 
From editor or global species database
Diagnosis Feracrinus with relatively narrow arm base (ratio of upper radial width to Br1 width 1.8 to 2.7). Brachial width decreasing progressively from proximal to distal arm. Brachial pairs and isolated brachials without conspicuous constriction midway between muscular articulations. Ornamentation variable, brachial without wing-like lateral projections. Beyond Br4, first brachial with two muscular articulations usually from Br11 to Br15, rarely at Br7 or 9, series of more than two successive muscular articulations appearing usually between Br16 and Br26, very rarely before Br11. Proximal part of genital pinnules with fragile H-shaped plates or only one row of lateral plates on each side. Tegmen never inflated with conspicuous ridges between oral cone and arm, up to 15 tegminal plates per interradius, orals well developed, anal cone lower or slightly higher than oral cone. Ratio of height to maximum diameter of aboral cup 1.0 to 1.2, ratio of cup height to radial height 1.3 to 1.8, ratio of upper radial ring diameter to upper basal ring diameter 1.26 to 1.47. Basal fused or basal ring with one to three sutures. Proximalmost stalk diameter up to 5.2 mm. Juvenile columnal symplexies with 6-7 crenular units of 1 short crenula. In larger specimens, columnal symplexies with 7-10 crenular units of 2-3 crenulae; beyond minimum stalk diameter, symplexies with regular radial crenulae becoming irregular more distally; typical syzygies with labyrinthic concentric pattern in distal stalk. [details]

Distribution SW Pacific, off Tasmania, depth 1,310-1,815 m. [details]
 

To CSIRO Marine Invertebrate Image Collection (MIIC-03160): Feracrinus koslowi Améziane & Roux, 2011
To CSIRO Marine Inv...
[hosted externally]

To CSIRO Marine Invertebrate Image Collection (MIIC-03161): Feracrinus koslowi Améziane & Roux, 2011
To CSIRO Marine Inv...
[hosted externally]

To CSIRO Marine Invertebrate Image Collection (MIIC-06449): Feracrinus koslowi Améziane & Roux, 2011
To CSIRO Marine Inv...
[hosted externally]