Grasshoffia virgularioides gen. & sp. n. External morphology. A Holotype (USNM 1205583) B Paratype 2 (USNM 1231550) C Paratype 1 (USNM 1231549) D Paratype 3 (USNM 1205580) E Detail of rachis of holotype showing polyps on convoluted polyp leaves F Material from the Smithsonian’s Museum Support Center invertebrate zoology collections. Top, USNM 1231549, Paratype 1 (peduncle); Middle, USNM 1231550, Paratype 2 (entire specimen); Bottom: USNM 1231549, Paratype 1 (rachis). Scale bar: 20 mm (F); 0.5 mm (E); 20 mm (F); 10 mm (A–D).