diff --git a/hash-syntax.scm b/hash-syntax.scm
index 57c3be6..1ceff07 100644
--- a/hash-syntax.scm
+++ b/hash-syntax.scm
@@ -29,7 +29,7 @@
 (description "S-expression comment [R6RS, R7RS, SRFI 62]")
 
 (id "#<...>")
-(description "Unreadable object [Gauche]")
+(description "XML literal [SRFI 107]; Unreadable object [Gauche]")
 
 (id "#<n>#")
 (description "Datum reference [R7RS]")
@@ -52,6 +52,9 @@
 (id "#|...|#")
 (description "Block comment [R6RS, R7RS, SRFI 30]")
 
+(id "#a")
+(description "Array [SRFI 58, SRFI 163]")
+
 (id "#b")
 (description "Binary integer [R2RS+]")