284 



GOBIAD.E. 



The Gobius niger of Mr. Donovan and Dr. Fleming 

 appears to be distinct from the G. niger of authors, and 

 identical with the G. bipunctatus of this work, the species 

 next to be described. 



The Black Goby inhabiting the rocky parts of our coast 

 is called Rock Goby and Rock-fish, to distinguish it from 

 the other British species of this genus, which frequent 

 sandy bays. The vignette at page 283 represents the under 

 surface of the Black Goby, showing the ventral fins forming 

 a circle by their double union. The use of the anal tubercle 

 is only conjectured. 



The vignette below represents the cranium of our Black 

 Goby. 



