Since this will serve as a trait thesaurus for zooplankton, I recommend including additional morphological traits beyond body size. For Bosmina, traits such as mucro size and antennule length are relevant; for Diaphanosoma, antennal segment lengths and head size; for Daphnia, head size, spina size, and spinule coverage; for Leptodora, feeding basket size and body thickness; and for Bythotrephes, spine length, brood sac length, and spine count.