Shark

This picture shows a closer view of the male urogenital system.  Because this shark was immature, you cannot see the reproductive tubules.  The kidney (which runs the length of the entire abdomen) has been a little ripped as well.  Click here for a labeled picture.

This picture shows the tubules in a mature male.  Click here for a labeled picture.

This shows the sperm sac near the cloaca.  Click here for a labeled picture.

Here is a picture of the female urogenital system for orientation.  The head is under the student's left hand.

Here's a closer view.  Like in the male, the tubules are not visible.  Click here for a labeled picture.

Here's a female where the oviduct is visible.  Click here for a labeled picture.

In this figure you can see the oviduct and the uterus.  Click here for a labeled picture.