Ichthyofauna of the lower course of the Negro river drainage, Patagonia Argentina Author Soricetti, Mariano Author Morawicki, Santiago Author Guardiola Rivas, Fredy José Author Guidi, Catalina Author Quezada, Facundo Author Almirón, Adriana Edith Author Solimano, Patricio José text Check List 2020 2020-07-24 16 4 895 905 http://dx.doi.org/10.15560/16.4.895 journal article 10.15560/16.4.895 1809-127X Jenynsia lineata (Jenyns, 1842) Figure 3F Material examined. ARGENTINA • 1 ♀ , 59 mm ; Site 1; 40°26ʹ18ʺS , 063°40ʹ54ʺW ; 21 Jan. 2016 ; M. Soricetti leg.; MPCN-Ict 6. • 1 ♂ , 23 mm ; Site 1; 40°26ʹ18ʺS , 063° 40ʹ54ʺW ; 21 Jan. 2016 ; F. Guardiola Rivas leg.; MPCN- Ict 47 . • 1 ♂ , 27 mm ; Site 3; 40°43ʹ30ʺS , 063°14ʹ02ʺW ; 23 Apr. 2016 ; M. Soricetti leg.; MPCN-Ict 48 . • 1 ♀ , 35 mm ; Site 4; 40°43ʹ15ʺS , 063°36ʹ02ʺW ; 20 Feb. 2016 ; P. Solimano leg.; MPCN-Ict 49 . • 1 ♀ , 37 mm ; Site 2; 40°42ʹ48ʺS , 063°23ʹ08ʺW ; 13 Dec. 2016 ; M. Soric- etti leg.; MPCN-Ict 50 . • 1 ♀ , 43 mm ; Site 3; 40° 4 3ʹ30ʺS , 063°14ʹ02ʺW ; 30 Apr. 2016 ; F. Guardiola Rivas leg.; MPCN-Ict 51 . • 1 ♂ , 49 mm ; Site 4; 40°43ʹ15ʺS , 063°36ʹ02ʺW ; 23 May. 2016 ; M. Soricetti leg.; MPCN- Ict 52 . • 1 ♀ , 52 mm ; Site 2; 40°42ʹ48ʺS , 063°23ʹ08ʺW ; 22 Nov. 2016 ; P. Solimano leg.; MPCN-Ict 53 . • 1 ♂ , 55 mm ; Site 1; 40°26ʹ18ʺS , 063°40ʹ54ʺW ; 18 Mar. 2016 ; F. Guardiola Rivas leg.; MPCN-Ict 54 . • 1 ♀ , 58 mm ; Site 1; 40°26ʹ18ʺS , 063°40ʹ54ʺW ; 23 May. 2017 ; M. Soricetti leg.; MPCN-Ict 55 . Identification. Small, body subcylindrical. A large central scale on the dorsal surface of the head. Predorsal series with 13 or 14 scales. Lateral line with 30–32 scales. A tubular gonopodium in the males formed by modified rays of the anal fin. Anal fin with 13 or 14 rays. Light gray background color with dash–shaped spots arranged in longitudinal lines, with four or five lines on the cau- dal peduncle.