Genus Culcitulisphaera Riedman and Porter, 2016  Type species.—Culcitulisphaera revelata, by monotypy.  Diagnosis.­—As for type species. Etymology.—From the Latin culcitula, meaning small pillow, and sphaera; thus, a sphere covered by small pillows Remarks.—This genus is characterized by the presence of the pillow elements of the vesicle exterior, visible in transmitted light microscopy but best understood…