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Spirillina limbata sensu Jones, R.W. 1994. The Challenger Foraminifera. Image source: Brady, H.B. (1884) Pl. 85
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Image source: Cushman, J.A. 1931. The Foraminifera of the Atlantic Ocean. Part 8. Rotaliidae, Amphisteginidae, Calcarinidae, Cymbaloporettidae, Globorotaliidae, Anomalinidae, Planorbulinidae, Rupertiidae and Homotremidae. Bull. U.S. Natl. Mus. 104.
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Image source: Cushman, J.A. 1915. A Monograph of the Foraminifera of the North Pacific Ocean. Part V. Rotaliidae. Bull. U.S. Nation. Mus 71: vii+87 pp.+31 pls.
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Image source: Cushman, J.A. 1915. A Monograph of the Foraminifera of the North Pacific Ocean. Part V. Rotaliidae. Bull. U.S. Nation. Mus 71: vii+87 pp.+31 pls.