Akademik
atri - beak
atrium oris
attachment disc
attractor epimeralis muscle
autotomy
bar
basal margin
basal plate
baseoendopod
basi-ischium
basial spine
basicarinal angle
basicerite
basidorsal point
basilateral angle
basioccludent angle
basiophthalmite
basipod(ite)
basis
basiscutal angle
basitergal angle
bathypelagic