diff --git a/test/unit/data_anndata/test_anndata_adaptor.py b/test/unit/data_anndata/test_anndata_adaptor.py
index f8ae8a86..fdf14e8e 100644
--- a/test/unit/data_anndata/test_anndata_adaptor.py
+++ b/test/unit/data_anndata/test_anndata_adaptor.py
@@ -36,7 +36,6 @@ Test the anndata adaptor using the pbmc3k data set.
         (f"{FIXTURES_ROOT}/pbmc3k-CSC-gz.h5ad", True, "normal"),
         (f"{FIXTURES_ROOT}/pbmc3k-CSR-gz.h5ad", True, "normal"),
         (f"{FIXTURES_ROOT}/pbmc3k_64.h5ad", False, "auto"),  # 64 bit conversion tests
-        (f"{FIXTURES_ROOT}/pbmc3k_16.h5ad", False, "auto"),  # 16 bit conversion tests
     ],
 )
 class AdaptorTest(unittest.TestCase):
diff --git a/test/unit/data_anndata/test_anndata_adaptor_errors.py b/test/unit/data_anndata/test_anndata_adaptor_errors.py
deleted file mode 100644
index 8c3ed609..00000000
--- a/test/unit/data_anndata/test_anndata_adaptor_errors.py
+++ /dev/null
@@ -1,23 +0,0 @@
-import unittest
-
-from parameterized import parameterized_class
-
-from server.common.errors import DatasetAccessError
-from test import FIXTURES_ROOT
-from test.unit import app_config
-
-
-@parameterized_class(
-    ("data_locator", "backed", "X_approximate_distribution"),
-    [
-        (f"{FIXTURES_ROOT}/pbmc3k_16.h5ad", True, "auto"),  # 16 bit conversion tests
-    ],
-)
-class AdaptorLoadErrorTest(unittest.TestCase):
-    def test_float16_backed_raises_err(self):
-        with self.assertRaises(DatasetAccessError):
-            config = app_config(
-                self.data_locator,
-                backed=self.backed,
-                extra_dataset_config=dict(X_approximate_distribution=self.X_approximate_distribution),
-            )