Biology 201

The Dogfish Laboratories

The photographs:

Here are some of the digital images of the shark that I have. Study these images, but remember that there is no substitute for the real thing. I am not suggesting that all of these shots will be on the exam, nor am I suggesting that these are the only shots I have. Click on the thumbnail to see a larger image.

 external shots                     muscles

skeleton                   gas exchange                    circulation

viscera                         nervous      urogenital

This series comes from a fresh (not preserved, not injected) male dogfish. Note the very white seminal vessicles and mesonephric ducts. The gall bladder is full of green bile.

The links:

Dissections: note that in some of these sites, the terminology may be different from that which we use. You will only be tested on the information covered in our labs, and you will be expected to use only the terminology from our manual.
 

R.F. Lauff Department of Biology St. Francis Xavier University Antigonish, NS Canada B2G 2W5