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Bulgaria (Bulgarien)
latitude: 43
longitude: 26
Precision of location: Gauged from chart or map
Site Named Here: By name of sea, gulf, or country named in source publication
| Planaria chichkovi | 1929 or earlier | |||
| Prorhynchus ponticus | 1927 or earlier | |||
| Mesostoma ehrenbergii | 1926 or earlier | |||
| Mesostoma ehrenbergii | 1934 or earlier | |||
| Mesostoma craci | 1926 or earlier | |||
| Bothromesostoma personatum | 1934 or earlier | |||
| Microstomum lineare | 1926 or earlier | |||
| Prorhynchus stagnalis | 1927 or earlier | Bulgarien. | ||
| Geocentrophora baltica | 1951 and earlier | Bulgarien, |