"The designations 29b and c of Krieg are retained, although 29b may cor- respond more closely to field 23 of gyren- cephalic mammals with respect to its con- nections (e.g., Rose and Woolsey, '48). "
Note that Caviness has the occipital areas intruding more into the medial surface than the ARA --- i.e. some of RSPd in the ARA is not only 29c, but also 18b and even 17 in Caviness.