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Theromyzon biannulatum  Klemm, 1977
Taxonomic Serial No.: 69376

(Download Help) Theromyzon biannulatum TSN 69376

 Taxonomy and Nomenclature
       
  Kingdom: Animalia  
  Taxonomic Rank: Species  
  Common Name(s):    
  Valid Name: Theromyzon bifarium Oosthuizen and Davies, 1993
 
       
  Taxonomic Status:    
  Current Standing: invalid - unavailable, nomen nudum   
       
  Data Quality Indicators:    
  Record Credibility Rating: verified - standards met  
       

 References
       
  Expert(s):    
  Expert: William E. Moser  
  Notes: Department of Invertebrate Zoology (MRC 163), National Museum of Natural History, Smithsonian Institution, Washington, DC 20560-0163   
  Reference for: Theromyzon biannulatum    
       
  Other Source(s):    
  Source: NODC Taxonomic Code, database (version 8.0)  
  Acquired: 1996   
  Notes:    
  Reference for: Theromyzon biannulatum   
       
  Publication(s):    
  Author(s)/Editor(s): Oosthuizen, J. H. and Ronald W. Davies  
  Publication Date: 1993   
  Article/Chapter Title: A new species of Theromyzon (Rhynchobdellida: Glossiphoniidae), with a review of the genus in North America   
  Journal/Book Name, Vol. No.: Canadian Journal of Zoology, vol. 71, no. 4   
  Page(s): 1311-1318   
  Publisher:    
  Publication Place:    
  ISBN/ISSN: 0008-4301   
  Notes: Volume 71, Number 4   
  Reference for: Theromyzon biannulatum   
       
  Author(s)/Editor(s): Sawyer, Roy T.  
  Publication Date: 1986   
  Article/Chapter Title:    
  Journal/Book Name, Vol. No.: Leech Biology and Behaviour, vol. 2   
  Page(s): 419-793   
  Publisher: Clarendon Press   
  Publication Place: Oxford, England   
  ISBN/ISSN: 0-19-857622-6   
  Notes:    
  Reference for: Theromyzon biannulatum   
       

 Geographic Information
       
  Geographic Division:    
       
  Jurisdiction/Origin:    
 

 

    

 Comments
       
  Comment: [The following is excerpted from Oosthuizen, J.H. and Ronald W. Davies (1993:7)]: "We consider the specific name biannulatum to be a nomen nudum because it does not conform to Articles 13 and 73 of the International Code of Zoological Nomenclature (I.C.Z.N.). Although it was proposed as a nomen novum, it does not satisfy Recommendation 13A of the I.C.Z.N. because the only characteristic originally considered by Klemm (1977) to differentiate ti from other named species turned out to be shared by at least two other species in the region, T. rude (Oosthuizen and Davies 1992) and T. bifarium n.sp. The name T. biannulatum also does not conform to Recommendation 73A, which requires an author to clearly designate a holotype, and Recommendation 73B, which indicates that an author should not designate a new species from specimens known to the author only from descriptions or illustrations in the literature."  
 

 

    

 
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