Amphilepis platytata A museum label B ventral view of two preserved specimens, arms with many short segments, 4-5 arm segments within disk C mouth area before SEM preparation D SEM of mouth area and proximal arm segments, triangular oral shields, sparse interbrachial scales, no tentacle pore scales E SEM of mouth area with pointed ventral teeth and infradental papillae F SEM of 7 arm segments partially bleached, VAPs nearly pentagonal, no tentacle pore scales, ventral, distal left. Abbreviations as in Fig. 12.