diff --git a/src/modules/otus/components/Panel/PanelStats/PanelStats.vue b/src/modules/otus/components/Panel/PanelStats/PanelStats.vue
index d645fd7..00b092b 100644
--- a/src/modules/otus/components/Panel/PanelStats/PanelStats.vue
+++ b/src/modules/otus/components/Panel/PanelStats/PanelStats.vue
@@ -23,6 +23,7 @@
             >
               Taxa
             </VTableHeaderCell>
+            <VTableHeaderCell v-if="showToRank"/>
             <VTableHeaderCell
               v-if="!hideNames"
               title="Taxon names"
@@ -43,6 +44,13 @@
               title="OTUs linked to valid protonyms"
               >Total</VTableHeaderCell
             >
+            <VTableHeaderCell
+                v-if="showToRank"
+                title="Number of taxa determined to this rank"
+                class="border-base-border"
+            >
+              To rank
+            </VTableHeaderCell>
             <VTableHeaderCell
               v-if="!hideNames"
               title="Taxon names"
@@ -65,6 +73,7 @@
           >
             <VTableBodyCell class="capitalize">{{ rank }}</VTableBodyCell>
             <VTableBodyCell v-if="isAdvancedView">{{ taxa }}</VTableBodyCell>
+            <VTableBodyCell v-if="showToRank">{{ toRank(rank) }}</VTableBodyCell>
             <VTableBodyCell v-if="!hideNames" class="border-l border-base-border">
               {{ names.invalid + names.valid }}
             </VTableBodyCell>
@@ -108,6 +117,12 @@ const props = defineProps({
     default: false
   },
 
+  // Show "Determined to Rank" column?
+  showToRank: {
+    type: Boolean,
+    default: false
+  },
+
   hideNames: {
     type: Boolean,
     default: false
@@ -117,6 +132,22 @@ const props = defineProps({
 const store = useOtuStore()
 const isAdvancedView = ref(props.showTaxa)
 const hideNames = ref(props.hideNames)
+const showToRank = ref(props.showToRank)
+
+if (props.showToRank) {
+  store.loadToRank(props.otuId)
+}
+
+const toRank = (rank) => {
+  const rankLc = rank.toLowerCase()
+  const data = store.determinedToRank.data
+  if (store.determinedToRank.isLoading) return "..."
+  else if (!data) return "—" // not yet loaded, or failed
+  else {
+    if (rankLc in data) return data[rankLc] ?? 0 // null means 0 in the API response
+    else return "missing"
+  }
+}
 
 const menuOptions = computed(() => [
   {
@@ -126,6 +157,10 @@ const menuOptions = computed(() => [
   {
     label: hideNames.value ? 'Show names' : 'Hide names',
     action: () => (hideNames.value = !hideNames.value)
+  },
+  {
+    label: showToRank.value ? 'Hide to rank' : 'Show to rank',
+    action: () => (showToRank.value = !showToRank.value)
   }
 ])
 </script>
diff --git a/src/modules/otus/services/TaxonWorks.js b/src/modules/otus/services/TaxonWorks.js
index 135baaf..43d72dd 100644
--- a/src/modules/otus/services/TaxonWorks.js
+++ b/src/modules/otus/services/TaxonWorks.js
@@ -104,6 +104,14 @@ export default class TaxonWorks {
     return makeAPIRequest.get(`/tags/`, processedOpt)
   }
 
+  // Counts of specimens within a given taxon that are identified only to a certain rank, and no finer.
+  // For example, {class: null, order: null, family: 3, genus: 5, species; 25, subspecies: 2}
+  // would mean that 3 specimens (probably lots of multiple individuals) have only been identified
+  // down to the family level, so they are good candidates to borrow for further identification.
+  static getDeterminedToRank(otuId, opt) {
+    return makeAPIRequest.get(`/otus/${otuId}/inventory/determined_to_rank.json`, opt)
+  }
+
   /** Load image info (thumbnail, etc) from a URL such as one in a Darwin Core 'associatedMedia' field. */
   static getImageFromUrl(url, opt) {
     // sanity check that this is the kind of URL we're looking for
diff --git a/src/modules/otus/store/store.js b/src/modules/otus/store/store.js
index 957f66e..aef3b06 100644
--- a/src/modules/otus/store/store.js
+++ b/src/modules/otus/store/store.js
@@ -19,6 +19,10 @@ export const useOtuStore = defineStore('otuStore', {
       taxonomy: {
         commonNames: [],
         synonyms: []
+      },
+      determinedToRank: {
+        isLoading: false,
+        data: {}
       }
     }
   },
@@ -72,6 +76,17 @@ export const useOtuStore = defineStore('otuStore', {
       }
     },
 
+    async loadToRank(otuId, opts) {
+      this.determinedToRank.isLoading = true
+      const response = await useOtuPageRequest('determinedToRank', () =>
+        TaxonWorks.getDeterminedToRank(otuId, opts)
+      )
+      this.determinedToRank = {
+        isLoading: false,
+        data: response.data
+      }
+    },
+
     async loadInit({ otuId, controller }) {
       const requestStore = useOtuPageRequestStore()