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• 
  Species:
  Trachelyopterus sp. (2)
  
  Caption: Close-up of dorsal view of head
• 
  Species:
  Chaca bankanensis
  
  Caption: Close-up of dorsal view of head
• 
  Species:
  Chaca chaca
  
  Caption: Close-up of dorsal view of head
• 
  Species:
  Dolichancistrus fuesslii
  
  Caption: Close-up of dorsal view of head
• 
  Species:
  Rineloricaria melini
  
  Caption: Close-up of dorsal view of head
• 
  Species:
  Brachyplatystoma tigrinum
  
  Caption: Close-up of dorsal view of head
• 
  Species:
  Sisor chennuah
  
  Caption: Close-up of dorsal view of head