Scientific name: 
Prionurus punctatus
Distinctive features: 
Numerous black spots on body. 1. Yellow tail. 2. White band behind eye.
6-12 in. max. 18 in.
Gray to brown. Row of three retractile spines on base of tail. The similar yellowtailed surgeonfish (P. laticlavius) is only found in the Galapagos and lacks the black spots.