Odontesthes bonariensis (Valenciennes, 1835)

Soricetti, Mariano, Morawicki, Santiago, Guardiola Rivas, Fredy José, Guidi, Catalina, Quezada, Facundo, Almirón, Adriana Edith & Solimano, Patricio José, 2020, Ichthyofauna of the lower course of the Negro river drainage, Patagonia Argentina, Check List 16 (4), pp. 895-905 : 898

Odontesthes bonariensis (Valenciennes, 1835)

Figure 3A

Material examined. ARGENTINA • 1 ♂, 110 mm; Site 4; 40°43ʹ15ʺS, 063°36ʹ02ʺW, 23 May 2017; P. Solimano leg.; MPCN-Ict 1 . • 1 ♀, 184 mm; Site 4; 40°43ʹ15ʺS, 063° 36ʹ02ʺW; 23 May 2017; P. Solimano leg.; MPCN-Ict 14 . • 1 ♀, 162 mm; Site 4; 40°43ʹ15ʺS, 063°36ʹ02ʺW; 24 Jan. 2017; F. Guardiola Rivas leg.; MPCN-Ict 15 . • 1 ♂, 205 mm; Site 6; 40°48ʹ10ʺS, 062°59ʹ36ʺW; 24 Jan. 2017; B. Rodriguez leg.; MPCN-Ict 16 . • 1 ♀, 237 mm; Site 6; 40°48ʹ10ʺS, 062°59ʹ36ʺW; 23 May 2017; P. Solimano leg.; MPCN-Ict 17 . • 1 ♂, 264 mm; Site 6; 40°48ʹ10ʺS, 062°59ʹ36ʺW; 24 Jan. 2017; M. Soricetti leg.; MPCN-Ict 18 .

Identification. Body elongated. Body scales small (10–

12 dorsal scales) with smooth posterior edge. Mouth with a medial tooth patch on vomer; three rows of teeth in the oral jaws, the teeth of outer rows larger and more robust. Posterodorsal edge of the opercular bone straight. Thirty to 40 gill rakers on the lower branch of the first branchial arch. First dorsal fin origin coincident or slightly ante- rior to the vertical that passes through the anus; five or less interdorsals; last ray of the anal fin anterior to verti- cal passing through the last ray of the second dorsal fin. Three rows of subocular scales; scales present between the anterior rays of the anal and second dorsal fins.