Scientific name: 
Halichoeres dispilus
Distinctive features: 
1. Small green to blue spot above pectoral fin.
Size: 
4-6 in. max. 8 in.
Can change colors rapidly and dramatically. Terminal phase head shades of salmon changing to shades of blue-green on body. Initial phase adults are light reddish brown to bluish white, with dark spot above pectoral fin.