Diphascon (Adropion) prorsirostre Thulin 1928

This was a rare species; the only specimen found had narrow buccal and pharyngeal tubes with no drop between them. Three rod-shaped macroplacoids but no microplacoid was within the pharyngeal bulb. Body length of the only specimen found was 528 μm, and it was in a LF sample (Table 3). The species has been cited in Europe, Asia, America and Oceania. In the Iberian Peninsula, it has been recorded for Andorra (Maucci & Durante Pasa 1984) and Portugal (Maucci & Durante Pasa 1985). It is the first record for Spain (Table 2).