Labels tentative. Please contact Morddyn via Flickr mail if you can confirm/correct any.
For ovotestis, usually hidden between digestive gland and stomach, see image 33Mm 33 Myosotella myosotis. Body removed from shell and viscera exposed; right side. Salting on tidal River Dee, Flintshire, Wales. December 2018. .
1: common genital opening in a lateral mound (often not discernible).
2: common duct (a.k.a. ovotestisduct or little hermaphrodite duct).
3: distended coils of common duct (a.k.a. little hermaphrodite duct) acting as seminal vesicle.
4: posterior mucus gland enclosing part of large/glandular hermaphrodite duct.
5: anterior mucus gland enclosing part of large/glandular hermaphrodite duct.
6-6: bursal duct?
7: bursa copulatrix?, spherical shape indistinct against other tissue.
8: penis?
9: preputium (penis sheath) ??

marinvert.senckenberg.science/image-browse/