API index: confusion between Drupal and Silverstripe paths

Looking at the /api/ index in the Django REST Framework, the path for drupal/advisories is mapping to {site}/api/silverstripe/advisories/, rather than {site}/api/drupal/advisories/. The same is also happening with advisory_sources.

I suspect this is possibly because e.g. archimedes.drupal.models.Advisory and archimedes.silverstripe.models.Advisory are colliding with each other, but will investigate further.