SRL for [coarctated]: Both specimens are somewhat irregularly grown , especially the larger one ( B ) , and have at a certain period of growth [coarctated] the circumference of the calicle and formed , as it were , a new calicle with a new theca within the old calicle ( fig . 6 ) and then again enlarging to the former size .
ARG-1: Both specimens | ARG-M-TMP: at a certain period of growth | ARG-2: the circumference of the calicle