WoRMS taxon details

Atelecrinus helgae AH Clark, 1913

124236  (urn:lsid:marinespecies.org:taxname:124236)

accepted
Species
marine, brackish, fresh, terrestrial
Clark, A.H. (1913) On a collection of recent Crinoids from the waters about Ireland. Department of Agriculture and Technical Instruction for Ireland, Fisheries Branch, Scientific Investigations 1912(4):1–5. [details]   
Distribution N and W of the British Isles, Gulf of Mexico, S Blake Plateau, Strait of Florida, Bahamas, E Caribbean Sea and Brazil....  
Distribution N and W of the British Isles, Gulf of Mexico, S Blake Plateau, Strait of Florida, Bahamas, E Caribbean Sea and Brazil. Bathymetric range: 640–1450 (possibly 1454) m, with one Bahamian record from 2793–2825 m. A. helgae appears to occur in deeper water than A. balanoides wherever the two co-occur (maximum possible ranges given): 1061–1400 vs. 512–781 m in the Gulf of Mexico; 1003–1454 vs. 514–733 m in the Strait of Florida; 1450–2825 vs. 658–714 m in the Bahamas, and 866–1257 vs. 598–838 m in the Lesser Antilles. (USNM E17842 was collected somewhere between 733–1281 m off Tobago.) A. helgae also generally occurs at shallower depths at higher latitudes. Records from the Blake Plateau (805–897 m), NE Atlantic (698–900 m) and Brazil (640–763 m) are shallower than those for the Gulf of Mexico, Bahamas and Caribbean Sea (chiefly 1003–1454 m with one record off Barbados in 866 m), though this must also reflect varying oceanographic conditions: the Gulf of Mexico records are deeper than those from the Blake Plateau at similar latitudes. [details]
Messing, C. (2018). World List of Crinoidea. Atelecrinus helgae AH Clark, 1913. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=124236 on 2018-02-21
Date
action
by
2004-12-21 15:54:05Z
created
2011-02-23 10:48:32Z
changed
2014-02-05 02:18:40Z
changed

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original description Clark, A.H. (1913) On a collection of recent Crinoids from the waters about Ireland. Department of Agriculture and Technical Instruction for Ireland, Fisheries Branch, Scientific Investigations 1912(4):1–5. [details]   

basis of record Messing, C. G. (2013). A revision of the genus Atelecrinus PH Carpenter (Echinodermata: Crinoidea). Zootaxa. 3681(1):1-43., available online at https://doi.org/10.11646/zootaxa.3681.1.1 [details]   

additional source Clark AH, Clark AM (1967) A monograph of the existing crinoids 1(5). Bulletin of the United States National Museum (82):1-860. [details]   

additional source Hansson, H. (2004). North East Atlantic Taxa (NEAT): Nematoda. Internet pdf Ed. Aug 1998., available online at http://www.tmbl.gu.se/libdb/taxon/taxa.html [details]  Available for editors  PDF available [request] 

additional source Hansson, H.G. (2001). Echinodermata, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,. 50: pp. 336-351. (look up in IMIS[details]   

context source (Deepsea) Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS), available online at http://www.iobis.org/ [details]   
 
 Present  Inaccurate  Introduced: alien 
 

From editor or global species database
Diagnosis Atelecrinus with centrodorsal usually tapering from the base; fulcral tubercles moderately to strongly developed; basals inflated interradially, forming continuations of usually well-developed ridges on centrodorsal; angle of radial profiles usually >90º; Iax2 hexagonal with weakly- to well-developed lateral knob- or ear-like lobes, or short diverging lateral margins; exterior margin of IIbr1 and IIbr2 and usually interior margin of IIbr3+4 flattened, often with a thick ridge along the edge. [details]

Distribution N and W of the British Isles, Gulf of Mexico, S Blake Plateau, Strait of Florida, Bahamas, E Caribbean Sea and Brazil. Bathymetric range: 640–1450 (possibly 1454) m, with one Bahamian record from 2793–2825 m. A. helgae appears to occur in deeper water than A. balanoides wherever the two co-occur (maximum possible ranges given): 1061–1400 vs. 512–781 m in the Gulf of Mexico; 1003–1454 vs. 514–733 m in the Strait of Florida; 1450–2825 vs. 658–714 m in the Bahamas, and 866–1257 vs. 598–838 m in the Lesser Antilles. (USNM E17842 was collected somewhere between 733–1281 m off Tobago.) A. helgae also generally occurs at shallower depths at higher latitudes. Records from the Blake Plateau (805–897 m), NE Atlantic (698–900 m) and Brazil (640–763 m) are shallower than those for the Gulf of Mexico, Bahamas and Caribbean Sea (chiefly 1003–1454 m with one record off Barbados in 866 m), though this must also reflect varying oceanographic conditions: the Gulf of Mexico records are deeper than those from the Blake Plateau at similar latitudes. [details]