Narrow buccal and pharyngeal tubes divided by the drop. Three rod-shaped macroplacoids, microplacoid and septulum present within the pharyngeal bulb. Macroplacoid length increasing from the first to the third one. Mean body size, among the 65 specimens collected, was 388 μm (SD 63), range 264 to 528 μm. The species has been cited for Europe, Asia, America and Antarctica (Ramazzotti & Maucci 1983; McInnes 1994). In the Iberian Peninsula, it has been recorded for Spain (Guil 2002). Diphascon (Diphascon) pingue appeared at 18 of our sampling points (Table 3), LF and MR samples.