Description
Centroheliozoa with a periplast comprising 3 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. References: M i k rj u kov (1996b), Nicholls and Durrschmidt (1985) . periplast (after Penard, 1891 ).
Type species
Raphidocystis lemani (Penard, 1891) Penard, 1904.
Figures
Raphidocystis lemani and elements of its periplast (after Penard, 1891).
Raw text
Centroheliozoa with a periplast comprising 3 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. References: M i k rj u kov (1996b), Nicholls and Durrschmidt (1985) . periplast (after Penard, 1891 ).