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Varichaetadrilus minutus  (Brinkhurst, 1965)
Taxonomic Serial No.: 68816

(Download Help) Varichaetadrilus minutus TSN 68816

 Taxonomy and Nomenclature
       
  Kingdom: Animalia  
  Taxonomic Rank: Species  
  Synonym(s): Varichaetadrilus nevadana (Brinkhurst, 1965)
 
    Isochaeta nevadana Brinkhurst, 1965
 
    Varichaetadrilus nevadanus (Brinkhurst, 1965)
 
    Psammoryctides minutus Brinkhurst, 1965
 
    Varichaeta nevadana (Brinkhurst, 1965)
 
  Common Name(s): aquatic oligochaete worm [English]
 
       
  Taxonomic Status:    
  Current Standing: valid  
       
  Data Quality Indicators:    
  Record Credibility Rating: verified - standards met  
       

 Taxonomic Hierarchy
       
 KingdomAnimalia  – Animal, animaux, animals  
    SubkingdomBilateria   
       InfrakingdomProtostomia   
          SuperphylumLophozoa   
             PhylumAnnelida  – annelids, annélides, Anelídeo, minhoca, sanguessuga  
                ClassClitellata   
                   SubclassTubificata   
                      OrderTubificida Brinkhurst, 1982 – aquatic oligochaete worm  
                         FamilyNaididae Ehrenberg, 1828 – aquatic oligochaete worm  
                            SubfamilyTubificinae Vejdovský, 1876 – aquatic oligochaete worm  
                               GenusVarichaetadrilus Brinkhurst & Kathman, 1983 – aquatic oligochaete worm  
                                  SpeciesVarichaetadrilus minutus (Brinkhurst, 1965) – aquatic oligochaete worm  
       

 References
       
  Expert(s):    
  Expert: Mark J. Wetzel  
  Notes: Oligochaetologist and Curator/Collections Manager of the INHS Annelida Collection, Illinois Natural History Survey, Forbes Natural History Building, MC-652, 1816 South Oak Street, Champaign, Illinois, 61801 USA   
  Reference for: Varichaetadrilus minutus    
       
  Other Source(s):    
  Source: Classification and checklist of the freshwater oligochaetes 2013, website (version 2013)  
  Acquired: 2013   
  Notes: Wetzel, M.J., R.D. Kathman, S.V. Fend, and K.A. Coates. 2013. Classification and checklist of the freshwater oligochaetes occurring in North America north of Mexico. World Wide Web URL: http://wwx.inhs.illinois.edu/people/mjwetzel/fwoligonachecklist   
  Reference for: Varichaetadrilus minutus   
       
  Source: Classification and Checklist of the Freshwater Oligochaetes..., website (version 31-Oct-07)  
  Acquired: 2007   
  Notes: Wetzel, M.J., R.D. Kathman, S.V. Fend, and K.A. Coates. 2007. Classification and checklist of the freshwater oligochaetes occurring in North America north of Mexico. World Wide Web URL: http://wwx.inhs.illinois.edu/people/mjwetzel/fwoligonachecklist   
  Reference for: Varichaetadrilus minutus   
       
  Source: NODC Taxonomic Code, database (version 8.0)  
  Acquired: 1996   
  Notes:    
  Reference for: Varichaetadrilus minutus   
       
  Publication(s):    
  Author(s)/Editor(s): Brinkhurst, Ralph O.  
  Publication Date: 1965   
  Article/Chapter Title: Studies on the North American aquatic Oligochaeta. II: Tubificidae   
  Journal/Book Name, Vol. No.: Proceedings of the Academy of Natural Sciences of Philadelphia, vol. 117, no. 4   
  Page(s): 117-172   
  Publisher:    
  Publication Place:    
  ISBN/ISSN:    
  Notes:    
  Reference for: Varichaetadrilus minutus   
       
  Author(s)/Editor(s): Brinkhurst, Ralph O.  
  Publication Date: 1981   
  Article/Chapter Title: A contribution to the taxonomy of the Tubificinae (Oligochaeta: Tubificidae)   
  Journal/Book Name, Vol. No.: Proceedings of the Biological Society of Washington, vol. 94, no. 4   
  Page(s): 1048-1067   
  Publisher:    
  Publication Place:    
  ISBN/ISSN: 0006-324X   
  Notes: Available online at http://biodiversitylibrary.org/page/34607563   
  Reference for: Varichaetadrilus minutus   
       
  Author(s)/Editor(s): Brinkhurst, Ralph O.  
  Publication Date: 1985   
  Article/Chapter Title: Varichaetadrilus minutus (Brinkhurst, 1965) new combination for Psammoryctides (?) minutus (Oligochaeta: Tubificidae)   
  Journal/Book Name, Vol. No.: Proceedings of the Biological Society of Washington, vol. 98, no. 3   
  Page(s): 655-656   
  Publisher:    
  Publication Place:    
  ISBN/ISSN: 0006-324X   
  Notes: Available online at http://biodiversitylibrary.org/page/34648938   
  Reference for: Varichaetadrilus minutus   
       
  Author(s)/Editor(s): Brinkhurst, Ralph O.  
  Publication Date: 1987   
  Article/Chapter Title: Notes on Varichaetadrilus Brinkhurst and Kathman, 1983 (Oligochaeta: Tubificidae)   
  Journal/Book Name, Vol. No.: Proceedings of the Biological Society of Washington, vol. 100, no. 3   
  Page(s): 515-517   
  Publisher:    
  Publication Place:    
  ISBN/ISSN: 0006-324X   
  Notes: Available online at http://biodiversitylibrary.org/page/34570923   
  Reference for: Varichaetadrilus minutus   
       
  Author(s)/Editor(s): Brinkhurst, Ralph O. / Brinkhurst, Ralph O., and Barrie G. M. Jamieson, eds.  
  Publication Date: 1971   
  Article/Chapter Title: Chapter 8: Family Tubificidae   
  Journal/Book Name, Vol. No.: Aquatic Oligochaeta of the World   
  Page(s): 444-625   
  Publisher: Oliver and Boyd, University of Toronto Press   
  Publication Place: Toronto, Ontario, Canada   
  ISBN/ISSN: 0-8020-1833-5   
  Notes: out of print   
  Reference for: Varichaetadrilus minutus   
       
  Author(s)/Editor(s): Brinkhurst, Ralph O., and Mark J. Wetzel  
  Publication Date: 1984   
  Article/Chapter Title: Aquatic Oligochaeta of the World: Supplement. A catalog of new freshwater species, descriptions, and revisions   
  Journal/Book Name, Vol. No.: Canadian Technical Report of Hydrography and Ocean Sciences no. 44   
  Page(s): v + 101   
  Publisher: Institute of Ocean Sciences   
  Publication Place: Sidney, British Columbia, Canada   
  ISBN/ISSN: 0711-6764   
  Notes: out of print; available as pdf by contacting M.J. Wetzel   
  Reference for: Varichaetadrilus minutus   
       
  Author(s)/Editor(s): Brinkhurst, Ralph O., and R. Deedee Kathman  
  Publication Date: 1983   
  Article/Chapter Title: Varichaetadrilus, a new name for Varichaeta Brinkhurst, 1981, non Speiser, 1903, (Diptera) with a description of a new species V. fulleri   
  Journal/Book Name, Vol. No.: Proceedings of the Biological Society of Washington, vol. 96, no. 2   
  Page(s): 301-306   
  Publisher:    
  Publication Place:    
  ISBN/ISSN: 0006-324X   
  Notes: Available online at http://biodiversitylibrary.org/page/34593386   
  Reference for: Varichaetadrilus minutus   
       
  Author(s)/Editor(s): Loden, Michael S.  
  Publication Date: 1978   
  Article/Chapter Title: A revision of the genus Psammoryctides (Oligochaeta: Tubificidae) in North America   
  Journal/Book Name, Vol. No.: Proceedings of the Biological Society of Washington, vol. 91, no. 1   
  Page(s): 74-84   
  Publisher:    
  Publication Place:    
  ISBN/ISSN: 0006-324X   
  Notes: Available online at http://biodiversitylibrary.org/page/34601341   
  Reference for: Varichaetadrilus minutus   
       

 Geographic Information
       
  Geographic Division: North America  
       
  Jurisdiction/Origin: Continental US, Native  
 

 

   

 Comments
       
  Comment: Originally described as Psammoryctides minutus by Brinkhurst (1965), he (Brinkhurst, 1971) subsequently judged this taxon to be species incerta sedis based upon some uncertainty in the distal narrowing of the ejaculatory duct. After a reassessment of previously dissected specimens, Loden (1978) recommended that this taxon be reinstated as valid. This species was placed in a new genus, Varichaeta, by Brinkhurst (1981). It was later discovered that the name Varichaeta was preoccupied (Varichaeta Speiser, 1903 in Diptera), so Brinkhurst and Kathman (1983) established the name Varichaetidrilus for the three known species at that time -- Varichaetadrilus pacificus (Brinkhurst, 1965) new combination (type species), Varichaetadrilus nevadana (Brinkhurst, 1965) new combination, and Varichaetadrilus israelis (Brinkhurst, 1965) new combination. Brinkhurst and Wetzel (1984, p. 48) stated that Psammoryctides minutus needed to be reassigned to Varichaetadrilus (the abstract stated that this name change was a new combination, although no additional explanation or diagnostic justification was provided). The following year, Brinkhurst (1985) established Varichaetadrilus minutus (Brinkhurst, 1965) as a new combination for Psammoryctides minutus, including explanation and diagnostic justification. Brinkhurst (1987) then synonymized Varichaetadrilus nevadanus with Varichaetadrilus minutus (Brinkhurst, 1965), with V. nevadanus as the junior synonym; both species were originally described as new to science in the same paper, but because the description of minutus appeared on p. 125, and the description of nevadana appeared on p. 127, the name minutus has priority  
 

 

   

 
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