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• 
  Species:
  Astroblepus caquetae
  
  Caption: Close-up of head, Dorsal view
• 
  Species:
  Ancistrus lineolatus
  
  Caption: Close-up of head, Dorsal view
• 
  Species:
  Chaetostoma platyrhynchus
  
  Caption: Close-up of head, Dorsal view
• 
  Species:
  Chaetostoma sp. (6)
  
  Caption: Close-up of head, dorsal view
• 
  Species:
  Chaetostoma vagum
  
  Caption: Close-up of head, Dorsal view
• 
  Species:
  Hypostomus argus
  
  Caption: Close-up of head, Dorsal view
• 
  Species:
  Hypostomus niceforoi
  
  Caption: Close-up of head, Dorsal view
• 
  Species:
  Hypostomus oculeus
  
  Caption: Close-up of head, Dorsal view
• 
  Species:
  Rineloricaria felipponei
  
  Caption: Close-up of head, Dorsal view
• 
  Species:
  Rineloricaria pareiacantha
  
  Caption: Close-up of head, Dorsal view