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Species: Acestridium dichromum Caption: Close-up of ventral view of head	Species: Aposturisoma myriodon Caption: Close-up of ventral view of head
Species: Metaloricaria paucidens Caption: Close-up of ventral view of head	Species: Synodontis polli Caption: Close-up of ventral view of head
Species: Dentectus barbarmatus Caption: Ventral view of head	Species: Hypancistrus sp. (L260) Caption: Ventral view of head
Species: Spatuloricaria sp. `RIO SAN ALEJANDRO` Caption: Ventral view of head	Species: Brachyplatystoma capapretum Caption: Ventral view of head