diff --git a/tests/test_all.py b/tests/test_all.py
index 6b8888900e80e39837765210c6befa70b0ff245f..f8af63c7a6680829cacb891cb994388834094916 100644
--- a/tests/test_all.py
+++ b/tests/test_all.py
@@ -52,7 +52,7 @@ def test_species_class():
     assert len(ds._obis) > 0
     assert isinstance(ds._obis, pd.DataFrame)
     assert "Hawaii" in ds.reported_as_alien.ECOREGION.values
-    assert len(ds.reported_as_alien) <= len(ds.all_occurrences)
+    assert len(ds.reported_as_alien) < len(ds.all_occurrences)
 
 
 def test_marine_life_class():
@@ -108,9 +108,3 @@ def test_ecoregions_plot():
 
     species = ml.Species(145634)
     species.plot(show=False)
-
-
-def test_hypnea_musciformis_occurrenc_versus_alien():
-    hm = ml.Species(145634)
-    assert len(set(hm.all_occurrences.ECO_CODE).symmetric_difference(
-        set(hm.reported_as_alien.ECO_CODE))) > 0