|   | 
       
      
         | 
       
      
          |   | 
         
      
        | Distinguishing Characteristics | 
       
      
                    
          -  Juncture between anteromedian and anterointermediate spines acutely notched          
 
          - Posterior spines absent 
 
- Length: lorica 154 µm, anterolateral dorsal spine 11-17 µm, anterointermediate dorsal spine 9-20 µm 
 
anteromedian dorsal spine 38-52 µm,  
- Distance between anterolateral spines 130-142 µm 
 
          | 
       
     
      
        |   | 
       
    
      |