Ichthyofauna of the ribeirão Sucuri, a tributary of the rio Tietê, upper rio Paraná basin, southeastern Brazil Author Reia, Lais Author S. da Costa e Silva, Gabriel Author Garcia-Ayala, James R. Author P. F. Vicensotto, Ana Maria Author Benine, Ricardo C. text Check List 2020 2020-06-16 16 3 711 728 http://dx.doi.org/10.15560/16.3.711 journal article 10.15560/16.3.711 1809-127X Hypostomus regani ( Ihering, 1905 ) Figure 3X Original description. Plecostomus regani Ihering 1905: 558 . Material examined. BRAZIL • 2, 58.7 −70.3 mm SL; São Paulo state , Pongaí , Córrego Santa Rosa ; 21°46′29″S , 049°23′34″W ; 12 May 2018 ; leg. Silva G.S.C. and Reia L. ( LBP 26475 ) • 4, 56.8−116.7 mm SL; São Paulo state , Pongaí , Córrego Zanata ; 21°47′02″S , 049°22′44″W ; 12 May 2018 ; leg. Silva G.S.C. and Reia L. ( LBP 26490 ) . Identification. Body elongated; mouth ventral; maxil- lary barbel long, slender, and free distally; teeth slender and bicuspid, central cusp larger than lateral; premax- illa with 50 to 61 teeth; dentary with 52 to 66 teeth; body covered by odontodes. Body completely covered by bone plates, median series with 26 perforated plates by lateral line; cleithrum and coracoid not exposed; abdomen par- tially covered by plates; lateral abdomen plates smaller and rounded; median platelets rounded and forming ab- dominal shield. Overall body coloration darkened; head with many small yellow spots, spots becoming larger on posterior portion of head, continuing and becoming gradually larger toward caudal peduncle; fins dark with large light round spots.