Fig. 1. Diagrammatic representation of the 10 known Paulinella species, emphasizing overall differences in test sizes and shapes (After Nicholls, 2009).
A P. ovalis (Wulff) Johnson, Hargraves & Sieburth, 1988;
B P. intermedia Vørs, 1993;
C P. indentata Hannah, Rogerson & Anderson, 1996;
D P. carsoni Nicholls, 2009;
E P. agassizi Nicholls, 2009;
F P. suzukii Nicholls, 2009;
G P. chromatophora Lauterborn, 1895;
H P. gigantica Nicholls, 2009;
I P. multipora Nicholls, 2009;
J P. lauterborni Nicholls, 2009.