“Nautilus striatopunctalis...” [three specimens of foraminifera]

Copy of plate 9 from Testacea microscopica aliaque minuta ex generibus Argonauta et Nautilu...by Leopold von Fichtel and J.P.C.von Moll (New edition, Vienna, 1803). Inscribed below with captioning details: “Nautilus striatopunctatus fig. a.b.c. = Polystomella striatopuntala. Nautilus ambiguus fig. d.e.f. = Polystomella ambigua. Nautilus farctus fig. g.h.i. = Planorbulina farcta.”

Each foraminifera [single-celled marine organisms with shells] in the illustration is reproduced as two planes under magnification and at actual size. In modern taxonomy: Elphidium striatopunctatum, Dendritina ambigua, and Cibicides farctus.