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        | Distinguishing
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          -   Postero-lateral facets on the dorsal surface of the lorica closed.          
 
          - Pustules  present on lorica surface.
 
          - The anterior horizontal ridge of anteromedial facet is short relative to the other sides of the facet, giving a distinctly triangular shape. 
 
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        | Ecology | 
      
      
                  
              - Cold stenotherm occuring in winter or in hypolimnion of cold deep lakes. 
 
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        | Additional Notes | 
      
      
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        | Additional Pictures | 
      
      
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