raphidiophrys drakena raphidiophrys drakena raphidiophrys drakena is a species of protist in the genus of raphidiophrys. it is a unicellular eukaryote with a cell diameter of 26.7±0.39 μm and several cell surface features like axopodia, kinecysts and a tangential scale layer. the scales have a length of 6.0±0.18 μm and a width of 3.5±0.14 μm. r. drakena differs from other morphologically studied members of the genus rhaphidiophrys by lacking spicules on its surface. raphidiophrys drakena scientific classification domain: eukaryota (unranked): hacrobia class: centrohelea order: acanthocystida family: raphidiophryidae genus: raphidiophrys binomial name raphidiophrys drakenazlatogursky, 2016