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Dalyellia helluo  (O. F. Müller, 1773)
Taxonomic Serial No.: 1046040

(Download Help) Dalyellia helluo TSN 1046040

 Taxonomy and Nomenclature
       
  Kingdom: Animalia  
  Taxonomic Rank: Species  
  Common Name(s):    
  Valid Name: Dalyellia viridis (Shaw, 1791)
 
       
  Taxonomic Status:    
  Current Standing: invalid - other, see comments   
       
  Data Quality Indicators:    
  Record Credibility Rating: verified - standards met  
       

 References
       
  Expert(s):    
  Expert:    
  Notes:    
  Reference for:    
       
  Other Source(s):    
  Source: Turbellarian taxonomic database, 1.7, database (version 1.7)  
  Acquired: 2016   
  Notes: Tyler S, Schilling S, Hooge M, and Bush LF (comp.) (2006-2016) Turbellarian taxonomic database. Version 1.7 http://turbellaria.umaine.edu (data licensed under Creative Commons Attribution-NonCommercial-ShareAlike 2.0; material adapted: formatted and edited)   
  Reference for: Dalyellia helluo   
       
  Publication(s):    
  Author(s)/Editor(s): Hyman, Libbie H.  
  Publication Date: 1955   
  Article/Chapter Title: Descriptions and Records of Fresh-Water Turbellaria from the United States   
  Journal/Book Name, Vol. No.: American Museum Novitates, no. 1714   
  Page(s): 1-36   
  Publisher:    
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  ISBN/ISSN:    
  Notes:    
  Reference for: Dalyellia helluo   
       

 Geographic Information
       
  Geographic Division:    
       
  Jurisdiction/Origin:    
 

 

    

 Comments
       
  Comment: 'The most common of [green rhabdocoels] is generally attributed to Shaw (1791) who described it under the name Hirudo viridis and gave some colored figures. Some workers, however, were of the opinion that Shaw's species was identical with Fasciola helluo 0.F. Muller, 1774, and hence they applied the name Dalyellia helluo to the species. It was pointed out by Sekera (1912), however, that Muller refers to spherical capsules, whereas the common species has distinctly oval capsules, as is also shown in Shaw's figures. It thus appears that Muller's species cannot be identified with certainty and that one may safely apply the name Dalyellia viridis to the commonest of the European green species of Dalyellia, distinguished by its oval capsules.' (Hyman, 1955, p. 10)  
 

 

    

 
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