Reproductive Organ of Blow Fly, Chrysomya megacephala (Diptera: Calliphoridae): Ultrastructural of Testis
Figure 5
TEM micrographs of the testis of a 7-day-old C. megacephala. (a) Testicular wall displayed an external layer (el), a peritoneal sheath (ps), a muscular layer (m) with nucleus (n). Rounded grains containing pigment, with varying density levels, are spread in the cytoplasm (arrows). (b) Development of sperimatozoa inside the germ cells (asterisks). (c) Enlargement of (b) presenting group of spermatozoa. (d) Spermatozoa showing nucleus (n), centriolar adjunct (ca), axoneme (ax), and mitochondrial derivatives (m).
