FIGURE 2 in Morphology and systematic position of Cingula tumidula G. O. Sars, 1878 (Gastropoda: Rissoidae)

FIGURE 2. Details of protoconch (A – D) and radula (E – F) of Pusillina tumidula. A – B. Eastern Barents Sea (Pechora Sea), 17.5 m, 69 ° 15.61 ' N, 57 ° 22.76 ' E, MMBI, no number; C. Franz Joseph Land, 44 m, 79 º 53.4 ' N, 51 º 26.06 ' E, MMBI, no number; D. White Sea, 85 m, 66 ° 20 ' N, 30 ° E (specimen with costae), ZIN 35667 / 2; E – F. Dalne-Zelenetskaya Bay, 59 m, 69 ° 07.92 ' N, 36 ° 05.45 ' E, MMBI, no number. Scales: A, C – D = 300 µm, В = 50 µm, E = 20 µm, F = 5 µm.