Some ultrastructural features in the spermatid of pig tail monkey.

In the spermatid of pig tail monkey, a floral body consisted of clusters of tubular elements was found near the acrosomal vesicles. The dimension of this organelle was 1 to 3μ and the diameter of the tubules was approximately 250A. It is possible that this structure may represent a modified Golgi apparatus.The mitochondria were uniformly distributed in the cytoplasm. The center portion of the mitochondria was often free of cristae.