Fig. 5. Testicular morphological characteristics of Early GE Development phase in C. kelberi. (a) Main testicular duct region (dt), highlighting the narrow light (arrow). (b) Testicular lobules with continuous germinal epithelium (Egc) and germ cells cysts in different phases of spermatogenesis. (c) Germ cells cysts in different phases of spermatogenesis. (d) Distal lobular region, highlighting the germ cells clusters (dotted line). Bv - blood vessels; S - Sertoli cell; Sc1 - primary spermatocysts; Sg1 - primary spermatogonia; Sg2 - secondary spermatogonia; St - spermatids; ta - tunica albuginea. H. E. stain.

Published as part of Siqueira-Silva, Diógenes Henrique de, Vicentini, Carlos Alberto, Ninhaus-Silveira, Alexandre & Veríssimo-Silveira, Rosicleire, 2013, Reproductive cycle of the Neotropical cichlid yellow peacock bass Cichla kelberi: A novel pattern of testicular development, pp. 587-596 in Neotropical Ichthyology 11 (3) on page 592, DOI: 10.1590/S1679-62252013000300012, http://zenodo.org/record/12651993