In-beam gamma-ray and gamma-gamma coincidence measurements have been made f
or the very neutron-deficient nucleus Hg-176 using the recoil-decay tagging
(RDT) technique. The irregular yrast sequence observed up to I = 10h indic
ates that the prolate intruder band, seen in heavier Hg isotopes near the n
eutron midshell, crosses the nearly spherical ground-state band of Hg-176 a
bove I=6h. [S0556-2813(98)50512-2].