diff --git a/docs/proposed/http-storage-node-protocol.rst b/docs/proposed/http-storage-node-protocol.rst
index 9354bc185..3926d9f4a 100644
--- a/docs/proposed/http-storage-node-protocol.rst
+++ b/docs/proposed/http-storage-node-protocol.rst
@@ -743,11 +743,15 @@ For example::
 
   [1, 5]
 
-``GET /v1/mutable/:storage_index?share=:s0&share=:sN&offset=:o1&size=:z0&offset=:oN&size=:zN``
+``GET /v1/mutable/:storage_index/:share_number``
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-Read data from the indicated mutable shares.
-Just like ``GET /v1/mutable/:storage_index``.
+Read data from the indicated mutable shares, just like ``GET /v1/immutable/:storage_index``
+
+The ``Range`` header may be used to request exactly one ``bytes`` range, in which case the response code will be 206 (partial content).
+Interpretation and response behavior is as specified in RFC 7233 § 4.1.
+Multiple ranges in a single request are *not* supported; open-ended ranges are also not supported.
+
 
 ``POST /v1/mutable/:storage_index/:share_number/corrupt``
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!