Description of Raphidocystis

Centroheliozoa with a periplast comprising three types of scales: straight tubular or trumpet-like radial scales, smaller funnel-shaped radial scales, and tangential elliptical plate-scales. The plate scales have a broad, hollow marginal rim, a smooth or reticular central area and a well-developed or vestigial medial rib as in Polyplacocystis. Type species: R. lemani (Penard, 1891) Penard, 1904.