The Spotted Blenny.'] OF ORKNEY. 203 



tail ; on the top of the back are ten round black spots, encir- 

 cled with white, which reach the lower half of the back-fin, 

 and one at the beginning of the tail. 



The anal fin begins at the vent, and runs to the tail ; the 

 tail is rounded, and of a yellow colour. 



The colour of the whole fish is olive ; the belly a dusky 

 white. 



Species 2. The Purple Blenny. 



THE appearance of this is so much like that of the former, 

 that I should almost take it for a variety, were it not that the 

 colour is different, being in this reddish purple; the fins lightest, 

 and of the same shape and size of the former. It likewise 

 wants the spots on the back the other has ; instead of eleven 

 in the former, this has only a single one, and that placed near 

 the beginning of the back-fin. In other circumstances, both 

 of its shape and way of life, it agrees altogether with the for- 

 mer. 



