160 
YELLOW GOBY. 
dorsal, and botli ending together at a good distance from the 
tail; the last-named fin round. Pectorals also round, not 
reaching to the vent. Yentrals united, round, but with a 
separating line causing them to appear as two, on which 
account a separate genus, as above, has been created for them. 
The general colour is a pale yellow, with a pink border to 
the very small scales. Slight pink bands on the dorsal fins 
and tail; border of the ventral fins very dark. 
I have noted that this speeies appears to be the most heavy 
of any Gobies that I have examined, and that there was much 
difficulty in the attempt to count the number of the rays of 
the fins. I supposed them to be— the pectoral fourteen, and 
twelve, ventral ten, eaudal fourteen. According to Risso, the 
first dorsal is furnished with six rays, which appears to be 
the usual number in most of the species in this section of the 
genus; the second has fourteen, pectoral fifteen, anal twelve, 
caudal fourteen, ventral ten. He says also that the pectoral 
fins have a brown spot at their base, and a slight mark of 
this appeared in the example we have deseribed; but in his 
specific character he speaks of this spot as sky blue, which at 
least implies a tendency to variation. 
