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. 2012 Jan;48(1):30–47. doi: 10.1016/j.ejop.2011.07.002

Figs 29–34.

Figs 29–34

Leptopharynx costatus gonohymen(29–32) and Leptopharynx costatus costatus(33, 34) after protargol impregnation. 29, 30. Right and left side view of the hapantotype specimen for the small morph (length 32 μm), which looks like the small morph of L. costatus costatus. Note the moderately oblique preoral region; the absence of dikinetids in kinety 3; and the flat orientation of M2 and M3 (arrows). 31, 32. Right and left side view of a small (26 μm) specimen. Although being small, this could be a transition stage to the large morph because it has dikinetids in kinety 3, pair-like monokinetids in kinety 5, and a less oblique preoral area. 33, 34. Right and left side view of large morph of the German population of L. costatus costatus, showing the wide oral basket, the flat M2 and M3, the presence of M1, and the slightly dislocated posterior kinetids of K1 (arrowhead). C, group C basal bodies; K1–9, somatic kineties; M1–3, adoral membranelles; MA, macronucleus; MI, micronucleus; NK, nasse kinetosomes; OB, oral basket; OP, oral primordium; PC, postoral complex; PO, preoral kineties; T, excretory tube. Scale bars 15 μm.