Necturus Testis and Reproduction 61 



Fig. 5. Cephalic region of testis, containing cysts filled with spermatozoa. Inter- 

 lobular tissue (arrows) is undeveloped. Note that this region merges with the 

 recently spermiated area at the top. X 121. 



posed of immature Leydig cells and myoid cells (Pudney et al. 1983). 

 The Leydig cells often abutted directly against the basal lamina of the 

 seminiferous lobule, but usually were excluded from this area by one or 

 more long cytoplasmic processess developed by myoid cells. Thus, these 



