Hypostomus ancistroides ( Ihering, 1911 )

Reia, Lais, S. da Costa e Silva, Gabriel, Garcia-Ayala, James R., P. F. Vicensotto, Ana Maria & Benine, Ricardo C., 2020, Ichthyofauna of the ribeirão Sucuri, a tributary of the rio Tietê, upper rio Paraná basin, southeastern Brazil, Check List 16 (3), pp. 711-728 : 721

Hypostomus ancistroides ( Ihering, 1911)

Figure 3Z

Original description. Plecostomus ancistroides Ihering 1911: 396 .

Material examined. BRAZIL • 1, 43.2 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 26482) • 3, 35.8−70.5 mm SL; São Paulo state, Pongaí, Ribeirão Sucuri ; 21°44′19″S, 049°21′56″W; 12 May 2018; leg. Silva G.S.C. and Reia L. (LBP 26495) • 7, 35.3−45.5 mm SL; São Paulo state, Uru, Córrego da Pata ; 21°43′49″S, 049°18′38″W; 12 May 2018; leg. Silva G.S.C. and Reia L. (LBP 26521) .

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 38 to 46 teeth; dentary with 36 to 43 teeth; body covered by odontodes. Body completely covered by bone plates, median series with 25 perforated plates by lat- eral line; cleithrum and coracoid not exposed; abdomen naked. Overall body coloration light-brown; head with many small dark spots, four dark saddles along dorsal portion of body: first at dorsal-fin base, second at end of dorsal-fin base, third at middle of caudal peduncle, and fourth reaching anteriormost caudal procurrent rays; fins hyaline with dark stripes.