Turritellella shoneana (Siddall 1878)

Turritellella shoneana sensu Jones, R.W. 1994. The Challenger Foraminifera. Image source: Brady, H.B. (1884) Pl. 38

Image source: Cushman, J.A. 1918. The Foraminifera of the Atlantic Ocean. Part I. Astrorhizidae. Bull. U.S. Natl. Mus. 104.

Image source: Höglund, H. 1947. Foraminifera in the Gullmar fjord and the Skagerak. Zoologiska Bidrag från Uppsala 26: 1-328 + 32 pls. Uploaded with written permission from the copyright owners Annalena Höglund and Jan Höglund.

Image source: Cushman, J.A. 1910. A Monograph of the Foraminifera of the North Pacific Ocean. Part I. Astrorhizidae and Lituolidae. Bull. U.S. Nation. Mus 71: xiv+134 pp.