Leptodactylus pentadactylus

Valchi, Paula, Ponssa, María Laura, Farías, Alejandro, Volonteri, María Clara & Hermida, Gladys N., 2023, Comparative spermatozoa ultrastructure of neotropical grass frogs (genus Leptodactylus) with comments on anuran reproductive modes and phylogeny, Zoologischer Anzeiger 302, pp. 166-185 : 173

L. pentadactylus have a mitochondrial collar ( Fig. 5I).

In the majority of the studied species from this group, the tail is constituted by the axoneme, adjacent to a juxtaxonemal fiber, an axial fiber, and an undulating membrane ( Fig. 5J). L. rhodonotus lacks a juxtaxonemal fiber ( Fig. 5K). Axoneme only in cross-sections of the terminal region of the tail, were only seen in L. rhodomystax ( Fig. 5J) and L. myersi .