Black leech, horse leech, etc
Common black leech, Hirudo verbana, var. nigra. 1, horse leech, Haemopis sanguisuga 2, Nile leech, Limnatis nilotica 3, medicinal leech, Hirudo medicinalis. 4
Gudgeon, bleak, spirlin, minnow and Prussian carp
Danube gudgeon, Gobio gobio 1, bleak, Alburnus alburnus 2, spirlin, Alburnoides bipunctatus 3, minnow, Phoxinus phoxinus 4, and Prussian carp, Carassius gibelio 5