| albania | | dugesia sp. 30 mr-2009 | species | 3 | 0 |
| albania | | dugesia sp. 31 mr-2009 | species | 2 | 0 |
| albania | korce county | dugesia sp. 30 mr-2009 | species | 3 | 0 |
| australia | | dugesia notogaea | species | 3 | 0 |
| austria | | schmidtea polychroa | species | 9 | 0 |
| brazil | rio grande do sul | girardia dorotocephala | species | 1 | 0 |
| brazil | rio grande do sul | girardia schubarti | species | 3 | 0 |
| brazil | rio grande do sul | girardia tigrina | species | 0 | 1 |
| brazil | rio grande do sul | schmidtea mediterranea | species | 0 | 1 |
| canada | nova scotia | girardia tigrina | species | 1 | 0 |
| china | | dugesia japonica | species | 33 | 0 |
| china | henan | dugesia japonica | species | 6 | 0 |
| china | shaanxi | dugesia japonica | species | 4 | 0 |
| china | shandong | dugesia japonica | species | 1 | 0 |
| denmark | | schmidtea polychroa | species | 1 | 0 |
| ethiopia | amhara region | dugesia aethiopica | species | 7 | 0 |
| france | | dugesia benazzii | species | 52 | 0 |
| france | | dugesia hepta | species | 4 | 0 |
| france | | dugesia sicula | species | 4 | 0 |
| france | | schmidtea polychroa | species | 10 | 0 |
| france | corse region | schmidtea mediterranea | species | 1 | 0 |
| germany | | schmidtea polychroa | species | 8 | 0 |
| greece | | dugesia cretica | species | 1 | 0 |
| greece | | dugesia sicula | species | 9 | 0 |
| greece | crete region | dugesia cretica | species | 14 | 0 |
| greece | crete region | schmidtea mediterranea | species | 0 | 1 |
| greece | epirus region | dugesia parasagitta | species | 8 | 0 |
| greece | ionian islands region | schmidtea mediterranea | species | 0 | 1 |
| greece | peloponnese region | dugesia arcadia | species | 6 | 0 |
| greece | peloponnese region | dugesia sp. d02psa | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d03afl | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d03tri | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d05afl | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d06afl | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d06tri | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d07afl | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d07psa | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d08and | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d08psa | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d08tri | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d09and | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d09psa | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d10and | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d10psa | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d10tri | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d11and | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d12tri | species | 1 | 0 |
| greece | peloponnese region | dugesia sp. d14and | species | 1 | 0 |
| greece | peloponnese region | schmidtea mediterranea | species | 0 | 1 |
| hungary | | schmidtea lugubris | species | 1 | 0 |
| hungary | | schmidtea polychroa | species | 2 | 0 |
| india | | dugesia bengalensis | species | 1 | 0 |
| italy | | dugesia benazzii | species | 179 | 0 |
| italy | | dugesia hepta | species | 164 | 0 |
| italy | | dugesia sicula | species | 41 | 0 |
| italy | | schmidtea lugubris | species | 1 | 0 |
| italy | | schmidtea polychroa | species | 45 | 0 |
| italy | liguria region | dugesia sp. 07 mr-2009 | species | 3 | 0 |
| italy | piemonte region | dugesia liguriensis | species | 2 | 0 |
| italy | sardinia autonomous region | dugesia benazzii | species | 87 | 0 |
| italy | sardinia autonomous region | dugesia gonocephala | species | 0 | 1 |
| italy | sardinia autonomous region | dugesia hepta | species | 32 | 0 |
| italy | sardinia autonomous region | dugesia sicula | species | 2 | 0 |
| italy | sardinia autonomous region | dugesia sp. 06 mr-2009 | species | 8 | 0 |
| italy | sardinia autonomous region | schmidtea mediterranea | species | 17 | 0 |
| italy | sardinia autonomous region | schmidtea polychroa | species | 2 | 0 |
| italy | sicily autonomous region | dugesia sicula | species | 6 | 0 |
| italy | sicily autonomous region | schmidtea mediterranea | species | 7 | 0 |
| italy | south tyrol autonomous region | schmidtea polychroa | species | 14 | 0 |
| italy | tuscany region | dugesia etrusca | species | 3 | 0 |
| italy | tuscany region | dugesia ilvana | species | 233 | 0 |
| italy | tuscany region | dugesia sp. 08 mr-2009 | species | 318 | 0 |
| japan | | dugesia japonica | species | 38 | 0 |
| japan | | dugesia ryukyuensis | species | 2 | 0 |
| japan | gifu prefecture | dugesia japonica | species | 29 | 0 |
| japan | hyogo prefecture | dugesia japonica | species | 137204 | 0 |
| japan | miyazaki prefecture | girardia dorotocephala | species | 1 | 0 |
| japan | okinawa prefecture | dugesia ryukyuensis | species | 1 | 0 |
| japan | saga prefecture | dugesia japonica | species | 2 | 0 |
| madagascar | amoron'i mania region | dugesia bifida | species | 2 | 0 |
| madagascar | amoron'i mania region | dugesia granosa | species | 112 | 0 |
| madagascar | amoron'i mania region | dugesia sp. gs76 | species | 260 | 0 |
| madagascar | analamanga region | dugesia sp. gs19 | species | 166 | 0 |
| madagascar | vakinankaratra region | dugesia sp. gs18 | species | 20 | 0 |
| malaysia | | dugesia batuensis | species | 1 | 0 |
| malaysia | selangor | dugesia batuensis | species | 6 | 0 |
| mexico | | girardia dorotocephala | species | 2 | 0 |
| mexico | federal district | girardia dorotocephala | species | 2 | 0 |
| mexico | michoacan ocampo | girardia dorotocephala | species | 1 | 0 |
| morocco | | dugesia sicula | species | 4 | 0 |
| netherlands | | schmidtea lugubris | species | 1 | 0 |
| netherlands | | schmidtea polychroa | species | 1 | 0 |
| netherlands | limburg province | dugesia gonocephala | species | 182 | 0 |
| poland | lubuskie province | girardia tigrina | species | 0 | 1 |
| romania | | schmidtea lugubris | species | 1 | 0 |
| romania | | schmidtea nova | species | 1 | 0 |
| slovakia | | dugesia gonocephala | species | 8 | 0 |
| slovakia | | girardia tigrina | species | 4 | 0 |
| south africa | eastern cape province | dugesia afromontana | species | 6 | 0 |
| spain | | dugesia sicula | species | 8 | 0 |
| spain | | girardia tigrina | species | 3 | 0 |
| spain | | schmidtea mediterranea | species | 10 | 0 |
| spain | | schmidtea polychroa | species | 1 | 0 |
| spain | andalusia | dugesia sicula | species | 3 | 0 |
| spain | aragon | dugesia sicula | species | 1 | 0 |
| spain | balearic islands | dugesia sicula | species | 488 | 0 |
| spain | balearic islands | dugesia subtentaculata | species | 24 | 0 |
| spain | canary islands | dugesia sicula | species | 10 | 0 |
| spain | castilla-la mancha | dugesia sp. 05 mr-2009 | species | 6 | 0 |
| spain | catalonia | dugesia sicula | species | 25 | 0 |
| spain | catalonia | dugesia sp. 01 mr-2009 | species | 28 | 0 |
| spain | catalonia | dugesia sp. 09 mr-2009 | species | 33 | 0 |
| spain | catalonia | girardia tigrina | species | 9 | 0 |
| spain | catalonia | schmidtea mediterranea | species | 2 | 0 |
| spain | catalonia | schmidtea polychroa | species | 2 | 0 |
| switzerland | | girardia tigrina | species | 1 | 0 |
| switzerland | | schmidtea polychroa | species | 6 | 0 |
| taiwan | | dugesia japonica | species | 2 | 1 |
| taiwan | | schmidtea mediterranea | species | 0 | 1 |
| thailand | | dugesia deharvengi | species | 1 | 0 |
| tunisia | | dugesia sicula | species | 48 | 0 |
| tunisia | | schmidtea mediterranea | species | 9 | 0 |
| tunisia | bizerte governorate | dugesia sicula | species | 3 | 0 |
| united kingdom | scotland | schmidtea polychroa | species | 1 | 0 |
| united states | | dugesia japonica | species | 1 | 0 |
| united states | hawaii | girardia dorotocephala | species | 3 | 0 |
| united states | maryland | girardia dorotocephala | species | 2 | 0 |
| united states | michigan | girardia dorotocephala | species | 1 | 0 |
| united states | michigan | girardia tigrina | species | 1 | 0 |
| united states | virginia | girardia dorotocephala | species | 2 | 0 |
| yemen | | dugesia aethiopica | species | 3 | 0 |