Fig. 2

Non-atrophied testicle of hybrid of T. sordida La Paz and T. sordida s.s., demonstrating the absence of gonadal dysgenesis. a Testicle of T. sordida La Paz; b testicle of hybrid F1 of the crosses between T. sordida La Paz female × T. sordida s.s. male; c testicle of hybrid F2 of the crosses between T. sordida La Paz male × T. sordida s.s. female. Bar: 10 mm