I have a feeling this may be one of those things that other Americans in Dakar have known about for a while and yet I am just discovering.
They are made by CDA Sénégal and are available at Hypermarché on the VDN as well as several other grocery stores. Look for them in the charcuterie section. You can find them for about 1,500 cfa for a pack of three.
They aren’t quite as good as the ones in France, but certainly have the right flavor and are a much better alternative than trying to make sausages at home! (However, if you’re looking for a country sausage recipe that can be made in about 15 minutes, here’s a link.)
Has anyone tried other CDA products?