LIMITS OF HEREDITARY CONTROL 923 
bithaas ekg 5 40 
if 
WL ee hac aia iw 
fig. ‘ 
Mvtwisiee ithe Peis cans cdl 
re 
ily 
beker PANG PAM Lek bi ide aig SEAS 
“eh BUR ih e 
erred. Ae ROME ney te 
bhdaua ss Laan?” “MAE 
Fig. 18 A shell showing a fusion between bandsland2. 1. 
Fig. 19 A shell showing an addition to the banded region from the scapular 
shield <= 
