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• 
  Species:
  Otocinclus vittatus
  
  Caption: Close-up ventral view of mouth and chest
• 
  Species:
  Astroblepus mancoi
  
  Caption: Ventral view of mouth
• 
  Species:
  Astroblepus sp. (2)
  
  Caption: Ventral view of mouth
• 
  Species:
  Ancistrus sp. (L327)
  
  Caption: Ventral view of mouth
• 
  Species:
  Chaetostoma platyrhynchus
  
  Caption: Ventral view of mouth
• 
  Species:
  Hypostomus sp. (L087)
  
  Caption: Ventral view of mouth
• 
  Species:
  Hypostomus sp. (L346)
  
  Caption: Ventral view of mouth
• 
  Species:
  Pseudohemiodon almendarizi
  
  Caption: Ventral view of mouth
• 
  Species:
  Chiloglanis sp. `SENGA BAY`(2)
  
  Caption: Ventral view of mouth
• 
  Species:
  Synodontis aterrimus
  
  Caption: Ventral view of mouth
• 
  Species:
  Pareuchiloglanis cf. longicauda
  
  Caption: Ventral view of mouth