Ghsiv. BLACK GOBY 175 
This fpecies grows to the length of fix inches 
the body is foft, flippery, and of a flender form : the 
head is rather large ; the cheeks inflated; the teeth 
fmall, and difpofed in two rows: from the head to 
the firft dorfal fin is a {mall fulcus. 
The firft dorfal fin confifts of fix rays; the pase 
of fourteen; the pectoral fins of fixteen or feven- 
teen, clofely fet together, and the middlemoft the 
longeft ; the others on each fide gradually fhorter. 
The ventral fins coalefce and form a fort of fun- 
nel, by which thefe fifh affix themfelves immoveably 
to the rocks, for which reafon they are called Rock- 
fi. 
The tail is rounded at the end. 
The color is brown, or deep olive, mixed with 
dark ftreaks, and fpotted with black: the dorfal 
and anal fins are of a pale blue, the rays marked 
with minute black fpots. 
I, The 
* Defer. 
