start stage end stage epipleural TAO:0000350 epipleurals zebrafish_anatomy Epipleurals lie below the horizontal septum and are posteroventrally directed. There are ossified epipleurals in certain ostariophysans. In many lower elopocephalan teleosts including ostariophysans the epipleural bones develop an anterodorsal branch so that they are forked proximally. ZFA:0000350 intermuscular bone larval:days 7-13 adult