Small admin improvements.

website/specimens/admin.py

@@ -24,7 +24,7 @@ class SpecimenAdmin(admin.ModelAdmin):
     form = MyAdminForm
 
     list_display = ('specimen_id', 'station', 'scientific_name', 'identified_by', 'specimen_location', 'depth_str', 'fixation')
-    list_filter = ('identified_by', 'specimen_location', 'fixation', 'station')
+    list_filter = ('identified_by', 'specimen_location', 'fixation', 'station__expedition')
     search_fields = ['scientific_name', 'specimen_id']
     # TODO: document searchable fields in template? (https://stackoverflow.com/questions/11411622/add-help-text-for-search-field-in-admin-py)
 
@@ -56,6 +56,6 @@ class ExpeditionAdmin(admin.ModelAdmin):
 
 @admin.register(SpecimenPicture)
 class SpecimenPictureAdmin(admin.ModelAdmin):
-    pass
+    fields = ('specimen', 'image', 'high_interest')
 
 admin.site.site_header = 'Astapor administration'
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