ABSTRACT

The acrosome complex is composed of a moderately electron-dense acrosome vesicle which completely (or almost completely) caps the conical perforatorium (Fig. 5.24A-C). Litoria dahlii, L. longirostris and Pseudis paradoxa differ in that the perforatorium extends beyond the base of the vesicle for a significant distance. The perforatorium is composed of coarse longitudinal fibers which appear as homogeneous separate sheaves in transverse section, and overlies the attenuated nuclear tip (Fig. 5.24A-C), though, in some species the fibers of the perforatorium are tightly packed and appear as a homogeneous mass. The acrosome complex is symmetrically (asymmetrically in L. longirostris) attached to the nucleus and extends anteriorly beyond the nuclear tip (Fig. 5.24A).