Fig. 13 in A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data

Fig. 13. Spermatozoa of Lepidocharax burnsi (MCP 34828, paratype, 31.9 mm SL) A: Longitudinal section of spermatozoa. Note the lateral position of the nucleus (n) in relation to the flagellar axis, the midpiece and the cytoplasmic canal (*) into which is the initial segment of the flagellum (f). The distal and proximal centrioles are outside the single and shadow nuclear fossa. Inset: The centriolar complex is associated at the tip of the nucleus. B-D: Cross sections at different levels of the nucleus showing the lateral position of the distal centriole (c) and the flagellum (f). E-G: Cross sections at different levels of the strongly asymmetric midpiece with some spherical mitochondria (m) accumulated in the major portion. H: Cross section of the flagella with the classic axoneme (a).