BLUE GOBY. 



Gobius Caeruleus. G. cceruleus, cauda rvbra nigro marginal^. 

 Blue Goby, with red tail bordered with black. 

 Le Gobie bleu. Cepede 2. p. 560. 



DESCRIBED by Cepede from Commerson. A 

 highly beautiful, though very small species : colour 

 fine blue, rather paler beneath : tail red, with a 

 black border : length about a decimetre : mouth 

 obtuse; teeth in the lower jaw sharp, and rather 

 longer than those of the upper : eyes rather more 

 distant than in others of the genus : body covered 

 with small rough scales : first dorsal fin triangular, 

 with the rays terminating in lengthened filaments : 

 second dorsal terminated by a ray of twice the 

 length of the rest : vent placed nearly in the middle 

 of the body: tail rounded. Inhabits the seas about 

 the eastern coasts of Africa, where it is used by the 

 negroes as a bait for other fish. From the brilliancy 

 of its colours it appears, when swimming in a calm 

 sea, during a bright sunshine, like a small tube of 

 sapphire, tipped with carbuncle. 



