Testis subspherical, postgermarial; proximal vas deferens not observed; seminal vesicle a simple dilation of distal vas deferens; anterior duct of seminal vesicle forming a loop before entering thick-walled teardrop-shaped ejaculatory bulb; ejaculatory duct arising from bulb and extending to portal of proximal chamber of MCO; large vesicle (prostatic reservoir?) with clear or reticulate contents lying to right of MCO.
Source: wiktionary