diff --git a/libtiledbsoma/src/soma/soma_array.cc b/libtiledbsoma/src/soma/soma_array.cc
index 9fe4d0db7c..0ea3ef4205 100644
--- a/libtiledbsoma/src/soma/soma_array.cc
+++ b/libtiledbsoma/src/soma/soma_array.cc
@@ -724,12 +724,13 @@ std::vector<int64_t> SOMAArray::shape() {
     // * Even after the new-shape feature is fully released, there will be old
     //   arrays on disk that were created before this feature existed.
     // So this is long-term code.
-    return _get_current_domain().is_empty() ? _tiledb_domain() :
-                                              _tiledb_current_domain();
+    return _get_current_domain().is_empty() ?
+               _shape_via_tiledb_domain() :
+               _shape_via_tiledb_current_domain();
 }
 
 std::vector<int64_t> SOMAArray::maxshape() {
-    return _tiledb_domain();
+    return _shape_via_tiledb_domain();
 }
 
 // This is a helper for can_upgrade_shape and can_resize, which have
@@ -1530,7 +1531,7 @@ void SOMAArray::_set_domain_helper(
     schema_evolution.array_evolve(uri_);
 }
 
-std::vector<int64_t> SOMAArray::_tiledb_current_domain() {
+std::vector<int64_t> SOMAArray::_shape_via_tiledb_current_domain() {
     // Variant-indexed dataframes must use a separate path
     _check_dims_are_int64();
 
@@ -1555,12 +1556,12 @@ std::vector<int64_t> SOMAArray::_tiledb_current_domain() {
 
     for (auto dimension_name : dimension_names()) {
         auto range = ndrect.range<int64_t>(dimension_name);
-        result.push_back(range[1] + 1);
+        result.push_back(range[1] - range[0] + 1);
     }
     return result;
 }
 
-std::vector<int64_t> SOMAArray::_tiledb_domain() {
+std::vector<int64_t> SOMAArray::_shape_via_tiledb_domain() {
     // Variant-indexed dataframes must use a separate path
     _check_dims_are_int64();
 
@@ -1577,15 +1578,16 @@ std::vector<int64_t> SOMAArray::_tiledb_domain() {
 
 std::optional<int64_t> SOMAArray::_maybe_soma_joinid_shape() {
     return _get_current_domain().is_empty() ?
-               _maybe_soma_joinid_tiledb_domain() :
-               _maybe_soma_joinid_tiledb_current_domain();
+               _maybe_soma_joinid_shape_via_tiledb_domain() :
+               _maybe_soma_joinid_shape_via_tiledb_current_domain();
 }
 
 std::optional<int64_t> SOMAArray::_maybe_soma_joinid_maxshape() {
-    return _maybe_soma_joinid_tiledb_domain();
+    return _maybe_soma_joinid_shape_via_tiledb_domain();
 }
 
-std::optional<int64_t> SOMAArray::_maybe_soma_joinid_tiledb_current_domain() {
+std::optional<int64_t>
+SOMAArray::_maybe_soma_joinid_shape_via_tiledb_current_domain() {
     const std::string dim_name = "soma_joinid";
 
     auto dom = schema_->domain();
@@ -1619,7 +1621,7 @@ std::optional<int64_t> SOMAArray::_maybe_soma_joinid_tiledb_current_domain() {
     return std::optional<int64_t>(max);
 }
 
-std::optional<int64_t> SOMAArray::_maybe_soma_joinid_tiledb_domain() {
+std::optional<int64_t> SOMAArray::_maybe_soma_joinid_shape_via_tiledb_domain() {
     const std::string dim_name = "soma_joinid";
 
     auto dom = schema_->domain();
diff --git a/libtiledbsoma/src/soma/soma_array.h b/libtiledbsoma/src/soma/soma_array.h
index 403fcb3bb5..bd20479488 100644
--- a/libtiledbsoma/src/soma/soma_array.h
+++ b/libtiledbsoma/src/soma/soma_array.h
@@ -1530,10 +1530,10 @@ class SOMAArray : public SOMAObject {
      *
      * Here we distinguish between user-side API, and core-side implementation.
      */
-    std::vector<int64_t> _tiledb_domain();
-    std::vector<int64_t> _tiledb_current_domain();
-    std::optional<int64_t> _maybe_soma_joinid_tiledb_current_domain();
-    std::optional<int64_t> _maybe_soma_joinid_tiledb_domain();
+    std::vector<int64_t> _shape_via_tiledb_domain();
+    std::vector<int64_t> _shape_via_tiledb_current_domain();
+    std::optional<int64_t> _maybe_soma_joinid_shape_via_tiledb_current_domain();
+    std::optional<int64_t> _maybe_soma_joinid_shape_via_tiledb_domain();
 
     void fill_metadata_cache(std::optional<TimestampRange> timestamp);