Figs 19a–l in Five New Spathidiids (Ciliophora: Bromeliads Haptoria) from Caribbean Tank

Figs 19a–l. Spathidium wolfi from life (a–h) and after protargol impregnation (i–l). a – right side view of a representative specimen, length 140 µm. The arrowhead marks the anterior contractile vacuole; b – frontal view of oral bulge; c – oral bulge extrusomes, length 10 µm; d – developing extrusomes in the cytoplasm; e – slender shape variant, showing the two contractile vacuoles (arrowheads); f – development of the "Ringgranula" (cp. Fig. 19a); g, h – surface view and optical section, showing the cortical granulation; i, j – ventral and dorsal view of anterior body region of a paratype specimen, showing the isostichad dorsal brush and the cuneate oral bulge; k, l – right and left side view of anterior body region of the holotype specimen (cp. Figs 20a, b). B(1–3) – dorsal brush rows, BA – oral basket, BU – oral bulge, CK – circumoral kinety, E – extrusomes, F – oral bulge fibres, G – cortical granules, L – lipid droplet, MA – macronucleus, RG – "Ringgranula". Scale bars: 15 µm (i–l) and 50 µm (a).