"At this size and color pattern, the only reliable way to determine the
species is by the curvature of the fourth bar from the head, a character
that remains reliable until the bars disappear. In the blue angelfish this
bar is straight (on the body) while that of the queen angelfish is distinctly
curved. Juveniles possessing a bar that is only slightly curved may be
of the intermediate hybrid form."
From: HYBRIDIZATION BETWEEN THE WESTERN ATLANTIC ANGELFISHES, HOLACANTHUS ISABELITA AND H. CILIARIS
HENRY A. FEDDERN
Institute of Marine Sciences, University of Miami
Humaguy nailed it. :hammer:
Townsends are fairly rare, Feddern found 187 blues, 87 queens, and only 40 townsends in the one survey off Florida.